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Finding the Fourth Proportional to 54,471.47, 81,697.47 and 14,490.68

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Solution

The fourth proportional to 54,471.47, 81,697.47 and 14,490.68 is: 21,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,471.47 : 81,697.47 = 14,490.68 : x
  2. Step 2: Convert to fraction form
    54,471.47/81,697.47 = 14,490.68/x
  3. Step 3: Cross multiply
    54,471.47x = 81,697.47 × 14,490.68
  4. Step 4: Simplify right side
    54,471.47x = 1,183,851,894.58
  5. Step 5: Solve for x
    x = 1,183,851,894.58/54,471.47
  6. Step 6: Final answer
    x = 21,733.43

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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.