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Finding the Fourth Proportional to 63,028.96, 86,972.63 and 38,487.43

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Solution

The fourth proportional to 63,028.96, 86,972.63 and 38,487.43 is: 53,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,028.96 : 86,972.63 = 38,487.43 : x
  2. Step 2: Convert to fraction form
    63,028.96/86,972.63 = 38,487.43/x
  3. Step 3: Cross multiply
    63,028.96x = 86,972.63 × 38,487.43
  4. Step 4: Simplify right side
    63,028.96x = 3,347,353,009.04
  5. Step 5: Solve for x
    x = 3,347,353,009.04/63,028.96
  6. Step 6: Final answer
    x = 53,108.17

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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.