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Finding the Fourth Proportional to 21,648,385,655.60, 32,472,578,483.40 and 21,648,385,655.60

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Solution

The fourth proportional to 21,648,385,655.60, 32,472,578,483.40 and 21,648,385,655.60 is: 32,472,578,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,648,385,655.60 : 32,472,578,483.40 = 21,648,385,655.60 : x
  2. Step 2: Convert to fraction form
    21,648,385,655.60/32,472,578,483.40 = 21,648,385,655.60/x
  3. Step 3: Cross multiply
    21,648,385,655.60x = 32,472,578,483.40 × 21,648,385,655.60
  4. Step 4: Simplify right side
    21,648,385,655.60x = 702,978,902,240,381,763,584
  5. Step 5: Solve for x
    x = 702,978,902,240,381,763,584/21,648,385,655.60
  6. Step 6: Final answer
    x = 32,472,578,483.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.