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Finding the Fourth Proportional to 91,600.82, 137,414.27 and 28,426.40

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Solution

The fourth proportional to 91,600.82, 137,414.27 and 28,426.40 is: 42,643.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,600.82 : 137,414.27 = 28,426.40 : x
  2. Step 2: Convert to fraction form
    91,600.82/137,414.27 = 28,426.40/x
  3. Step 3: Cross multiply
    91,600.82x = 137,414.27 × 28,426.40
  4. Step 4: Simplify right side
    91,600.82x = 3,906,192,824.08
  5. Step 5: Solve for x
    x = 3,906,192,824.08/91,600.82
  6. Step 6: Final answer
    x = 42,643.65

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1.5x scale

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.