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Finding the Fourth Proportional to 62,681.85, 86,508.60 and 35,818.20

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Solution

The fourth proportional to 62,681.85, 86,508.60 and 35,818.20 is: 49,433.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,681.85 : 86,508.60 = 35,818.20 : x
  2. Step 2: Convert to fraction form
    62,681.85/86,508.60 = 35,818.20/x
  3. Step 3: Cross multiply
    62,681.85x = 86,508.60 × 35,818.20
  4. Step 4: Simplify right side
    62,681.85x = 3,098,582,336.52
  5. Step 5: Solve for x
    x = 3,098,582,336.52/62,681.85
  6. Step 6: Final answer
    x = 49,433.49

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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.