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Finding the Fourth Proportional to 56,491.66, 84,737.99 and 14,371.79

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Solution

The fourth proportional to 56,491.66, 84,737.99 and 14,371.79 is: 21,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.66 : 84,737.99 = 14,371.79 : x
  2. Step 2: Convert to fraction form
    56,491.66/84,737.99 = 14,371.79/x
  3. Step 3: Cross multiply
    56,491.66x = 84,737.99 × 14,371.79
  4. Step 4: Simplify right side
    56,491.66x = 1,217,836,525.44
  5. Step 5: Solve for x
    x = 1,217,836,525.44/56,491.66
  6. Step 6: Final answer
    x = 21,557.81

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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.