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Finding the Fourth Proportional to 56,687.65, 85,006.87 and 17,235.52

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Solution

The fourth proportional to 56,687.65, 85,006.87 and 17,235.52 is: 25,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,687.65 : 85,006.87 = 17,235.52 : x
  2. Step 2: Convert to fraction form
    56,687.65/85,006.87 = 17,235.52/x
  3. Step 3: Cross multiply
    56,687.65x = 85,006.87 × 17,235.52
  4. Step 4: Simplify right side
    56,687.65x = 1,465,137,352.42
  5. Step 5: Solve for x
    x = 1,465,137,352.42/56,687.65
  6. Step 6: Final answer
    x = 25,845.80

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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.