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Finding the Fourth Proportional to 62,136.57, 85,719.15 and 42,000.48

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Solution

The fourth proportional to 62,136.57, 85,719.15 and 42,000.48 is: 57,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,136.57 : 85,719.15 = 42,000.48 : x
  2. Step 2: Convert to fraction form
    62,136.57/85,719.15 = 42,000.48/x
  3. Step 3: Cross multiply
    62,136.57x = 85,719.15 × 42,000.48
  4. Step 4: Simplify right side
    62,136.57x = 3,600,245,445.19
  5. Step 5: Solve for x
    x = 3,600,245,445.19/62,136.57
  6. Step 6: Final answer
    x = 57,940.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.