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Finding the Fourth Proportional to 62,990.44, 86,930.46 and 36,132.76

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Solution

The fourth proportional to 62,990.44, 86,930.46 and 36,132.76 is: 49,865.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,990.44 : 86,930.46 = 36,132.76 : x
  2. Step 2: Convert to fraction form
    62,990.44/86,930.46 = 36,132.76/x
  3. Step 3: Cross multiply
    62,990.44x = 86,930.46 × 36,132.76
  4. Step 4: Simplify right side
    62,990.44x = 3,141,037,447.87
  5. Step 5: Solve for x
    x = 3,141,037,447.87/62,990.44
  6. Step 6: Final answer
    x = 49,865.30

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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.