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Finding the Fourth Proportional to 7,262,142.30, 10,893,213.45 and 7,262,142.30

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Solution

The fourth proportional to 7,262,142.30, 10,893,213.45 and 7,262,142.30 is: 10,893,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262,142.30 : 10,893,213.45 = 7,262,142.30 : x
  2. Step 2: Convert to fraction form
    7,262,142.30/10,893,213.45 = 7,262,142.30/x
  3. Step 3: Cross multiply
    7,262,142.30x = 10,893,213.45 × 7,262,142.30
  4. Step 4: Simplify right side
    7,262,142.30x = 79,108,066,178,173.92
  5. Step 5: Solve for x
    x = 79,108,066,178,173.92/7,262,142.30
  6. Step 6: Final answer
    x = 10,893,213.45

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Double scale
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Similar ratio
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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.