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Finding the Fourth Proportional to 67,489.92, 93,138.72 and 37,276.80

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Solution

The fourth proportional to 67,489.92, 93,138.72 and 37,276.80 is: 51,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,489.92 : 93,138.72 = 37,276.80 : x
  2. Step 2: Convert to fraction form
    67,489.92/93,138.72 = 37,276.80/x
  3. Step 3: Cross multiply
    67,489.92x = 93,138.72 × 37,276.80
  4. Step 4: Simplify right side
    67,489.92x = 3,471,913,437.70
  5. Step 5: Solve for x
    x = 3,471,913,437.70/67,489.92
  6. Step 6: Final answer
    x = 51,443.44

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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.