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Finding the Fourth Proportional to 56,861.40, 85,292.02 and 15,308.44

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Solution

The fourth proportional to 56,861.40, 85,292.02 and 15,308.44 is: 22,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.40 : 85,292.02 = 15,308.44 : x
  2. Step 2: Convert to fraction form
    56,861.40/85,292.02 = 15,308.44/x
  3. Step 3: Cross multiply
    56,861.40x = 85,292.02 × 15,308.44
  4. Step 4: Simplify right side
    56,861.40x = 1,305,687,770.65
  5. Step 5: Solve for x
    x = 1,305,687,770.65/56,861.40
  6. Step 6: Final answer
    x = 22,962.64

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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.