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Finding the Fourth Proportional to 70,207.92, 105,338.18 and 36,452.87

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Solution

The fourth proportional to 70,207.92, 105,338.18 and 36,452.87 is: 54,692.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,207.92 : 105,338.18 = 36,452.87 : x
  2. Step 2: Convert to fraction form
    70,207.92/105,338.18 = 36,452.87/x
  3. Step 3: Cross multiply
    70,207.92x = 105,338.18 × 36,452.87
  4. Step 4: Simplify right side
    70,207.92x = 3,839,878,941.04
  5. Step 5: Solve for x
    x = 3,839,878,941.04/70,207.92
  6. Step 6: Final answer
    x = 54,692.96

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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.