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Finding the Fourth Proportional to 56,371.74, 84,550.89 and 14,821.98

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Solution

The fourth proportional to 56,371.74, 84,550.89 and 14,821.98 is: 22,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,371.74 : 84,550.89 = 14,821.98 : x
  2. Step 2: Convert to fraction form
    56,371.74/84,550.89 = 14,821.98/x
  3. Step 3: Cross multiply
    56,371.74x = 84,550.89 × 14,821.98
  4. Step 4: Simplify right side
    56,371.74x = 1,253,211,600.56
  5. Step 5: Solve for x
    x = 1,253,211,600.56/56,371.74
  6. Step 6: Final answer
    x = 22,231.20

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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.