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Finding the Fourth Proportional to 54,470.47, 81,695.97 and 14,489.68

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Solution

The fourth proportional to 54,470.47, 81,695.97 and 14,489.68 is: 21,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,470.47 : 81,695.97 = 14,489.68 : x
  2. Step 2: Convert to fraction form
    54,470.47/81,695.97 = 14,489.68/x
  3. Step 3: Cross multiply
    54,470.47x = 81,695.97 × 14,489.68
  4. Step 4: Simplify right side
    54,470.47x = 1,183,748,462.59
  5. Step 5: Solve for x
    x = 1,183,748,462.59/54,470.47
  6. Step 6: Final answer
    x = 21,731.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.