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Finding the Fourth Proportional to 56,737.74, 85,053.68 and 19,272.18

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Solution

The fourth proportional to 56,737.74, 85,053.68 and 19,272.18 is: 28,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,737.74 : 85,053.68 = 19,272.18 : x
  2. Step 2: Convert to fraction form
    56,737.74/85,053.68 = 19,272.18/x
  3. Step 3: Cross multiply
    56,737.74x = 85,053.68 × 19,272.18
  4. Step 4: Simplify right side
    56,737.74x = 1,639,169,830.62
  5. Step 5: Solve for x
    x = 1,639,169,830.62/56,737.74
  6. Step 6: Final answer
    x = 28,890.29

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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.