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Finding the Fourth Proportional to 7,467,420.30, 11,201,130.45 and 7,467,420.30

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Solution

The fourth proportional to 7,467,420.30, 11,201,130.45 and 7,467,420.30 is: 11,201,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,467,420.30 : 11,201,130.45 = 7,467,420.30 : x
  2. Step 2: Convert to fraction form
    7,467,420.30/11,201,130.45 = 7,467,420.30/x
  3. Step 3: Cross multiply
    7,467,420.30x = 11,201,130.45 × 7,467,420.30
  4. Step 4: Simplify right side
    7,467,420.30x = 83,643,548,905,278.12
  5. Step 5: Solve for x
    x = 83,643,548,905,278.12/7,467,420.30
  6. Step 6: Final answer
    x = 11,201,130.45

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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.