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Finding the Fourth Proportional to 67,394.80, 100,965.84 and 56,372.32

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Solution

The fourth proportional to 67,394.80, 100,965.84 and 56,372.32 is: 84,452.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,394.80 : 100,965.84 = 56,372.32 : x
  2. Step 2: Convert to fraction form
    67,394.80/100,965.84 = 56,372.32/x
  3. Step 3: Cross multiply
    67,394.80x = 100,965.84 × 56,372.32
  4. Step 4: Simplify right side
    67,394.80x = 5,691,678,641.55
  5. Step 5: Solve for x
    x = 5,691,678,641.55/67,394.80
  6. Step 6: Final answer
    x = 84,452.79

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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.