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Finding the Fourth Proportional to 56,491.47, 84,737.70 and 14,371.59

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Solution

The fourth proportional to 56,491.47, 84,737.70 and 14,371.59 is: 21,557.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.47 : 84,737.70 = 14,371.59 : x
  2. Step 2: Convert to fraction form
    56,491.47/84,737.70 = 14,371.59/x
  3. Step 3: Cross multiply
    56,491.47x = 84,737.70 × 14,371.59
  4. Step 4: Simplify right side
    56,491.47x = 1,217,815,481.94
  5. Step 5: Solve for x
    x = 1,217,815,481.94/56,491.47
  6. Step 6: Final answer
    x = 21,557.51

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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.