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Finding the Fourth Proportional to 67,672.80, 101,591.28 and 66,924.36

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Solution

The fourth proportional to 67,672.80, 101,591.28 and 66,924.36 is: 100,467.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,672.80 : 101,591.28 = 66,924.36 : x
  2. Step 2: Convert to fraction form
    67,672.80/101,591.28 = 66,924.36/x
  3. Step 3: Cross multiply
    67,672.80x = 101,591.28 × 66,924.36
  4. Step 4: Simplify right side
    67,672.80x = 6,798,931,395.58
  5. Step 5: Solve for x
    x = 6,798,931,395.58/67,672.80
  6. Step 6: Final answer
    x = 100,467.71

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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.