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Finding the Fourth Proportional to 56,808.62, 85,213.47 and 15,255.62

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Solution

The fourth proportional to 56,808.62, 85,213.47 and 15,255.62 is: 22,883.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,808.62 : 85,213.47 = 15,255.62 : x
  2. Step 2: Convert to fraction form
    56,808.62/85,213.47 = 15,255.62/x
  3. Step 3: Cross multiply
    56,808.62x = 85,213.47 × 15,255.62
  4. Step 4: Simplify right side
    56,808.62x = 1,299,984,317.20
  5. Step 5: Solve for x
    x = 1,299,984,317.20/56,808.62
  6. Step 6: Final answer
    x = 22,883.58

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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.