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Finding the Fourth Proportional to 62,748, 86,587.92 and 34,447.84

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Solution

The fourth proportional to 62,748, 86,587.92 and 34,447.84 is: 47,535.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,748 : 86,587.92 = 34,447.84 : x
  2. Step 2: Convert to fraction form
    62,748/86,587.92 = 34,447.84/x
  3. Step 3: Cross multiply
    62,748x = 86,587.92 × 34,447.84
  4. Step 4: Simplify right side
    62,748x = 2,982,766,814.09
  5. Step 5: Solve for x
    x = 2,982,766,814.09/62,748
  6. Step 6: Final answer
    x = 47,535.65

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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.