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Finding the Fourth Proportional to 67,785.68, 93,522.85 and 39,101.49

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Solution

The fourth proportional to 67,785.68, 93,522.85 and 39,101.49 is: 53,947.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,785.68 : 93,522.85 = 39,101.49 : x
  2. Step 2: Convert to fraction form
    67,785.68/93,522.85 = 39,101.49/x
  3. Step 3: Cross multiply
    67,785.68x = 93,522.85 × 39,101.49
  4. Step 4: Simplify right side
    67,785.68x = 3,656,882,784.05
  5. Step 5: Solve for x
    x = 3,656,882,784.05/67,785.68
  6. Step 6: Final answer
    x = 53,947.72

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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.