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Finding the Fourth Proportional to 56,834.40, 85,251.60 and 17,391.60

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Solution

The fourth proportional to 56,834.40, 85,251.60 and 17,391.60 is: 26,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,834.40 : 85,251.60 = 17,391.60 : x
  2. Step 2: Convert to fraction form
    56,834.40/85,251.60 = 17,391.60/x
  3. Step 3: Cross multiply
    56,834.40x = 85,251.60 × 17,391.60
  4. Step 4: Simplify right side
    56,834.40x = 1,482,661,726.56
  5. Step 5: Solve for x
    x = 1,482,661,726.56/56,834.40
  6. Step 6: Final answer
    x = 26,087.40

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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.