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Finding the Fourth Proportional to 62,402.67, 86,108.00 and 39,424.05

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Solution

The fourth proportional to 62,402.67, 86,108.00 and 39,424.05 is: 54,400.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,402.67 : 86,108.00 = 39,424.05 : x
  2. Step 2: Convert to fraction form
    62,402.67/86,108.00 = 39,424.05/x
  3. Step 3: Cross multiply
    62,402.67x = 86,108.00 × 39,424.05
  4. Step 4: Simplify right side
    62,402.67x = 3,394,725,900.28
  5. Step 5: Solve for x
    x = 3,394,725,900.28/62,402.67
  6. Step 6: Final answer
    x = 54,400.33

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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.