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Finding the Fourth Proportional to 58,781.71, 81,098.85 and 38,637.01

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Solution

The fourth proportional to 58,781.71, 81,098.85 and 38,637.01 is: 53,305.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,781.71 : 81,098.85 = 38,637.01 : x
  2. Step 2: Convert to fraction form
    58,781.71/81,098.85 = 38,637.01/x
  3. Step 3: Cross multiply
    58,781.71x = 81,098.85 × 38,637.01
  4. Step 4: Simplify right side
    58,781.71x = 3,133,417,078.44
  5. Step 5: Solve for x
    x = 3,133,417,078.44/58,781.71
  6. Step 6: Final answer
    x = 53,305.99

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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.