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Finding the Fourth Proportional to 71,324.73, 98,428.13 and 39,493.62

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Solution

The fourth proportional to 71,324.73, 98,428.13 and 39,493.62 is: 54,501.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,324.73 : 98,428.13 = 39,493.62 : x
  2. Step 2: Convert to fraction form
    71,324.73/98,428.13 = 39,493.62/x
  3. Step 3: Cross multiply
    71,324.73x = 98,428.13 × 39,493.62
  4. Step 4: Simplify right side
    71,324.73x = 3,887,282,966.06
  5. Step 5: Solve for x
    x = 3,887,282,966.06/71,324.73
  6. Step 6: Final answer
    x = 54,501.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.