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Finding the Fourth Proportional to 57,251.70, 85,877.55 and 50,909.40

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Solution

The fourth proportional to 57,251.70, 85,877.55 and 50,909.40 is: 76,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,251.70 : 85,877.55 = 50,909.40 : x
  2. Step 2: Convert to fraction form
    57,251.70/85,877.55 = 50,909.40/x
  3. Step 3: Cross multiply
    57,251.70x = 85,877.55 × 50,909.40
  4. Step 4: Simplify right side
    57,251.70x = 4,371,974,543.97
  5. Step 5: Solve for x
    x = 4,371,974,543.97/57,251.70
  6. Step 6: Final answer
    x = 76,364.10

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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.