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Finding the Fourth Proportional to 7,329.62, 10,114.84 and 3,972.42

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Solution

The fourth proportional to 7,329.62, 10,114.84 and 3,972.42 is: 5,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.62 : 10,114.84 = 3,972.42 : x
  2. Step 2: Convert to fraction form
    7,329.62/10,114.84 = 3,972.42/x
  3. Step 3: Cross multiply
    7,329.62x = 10,114.84 × 3,972.42
  4. Step 4: Simplify right side
    7,329.62x = 40,180,392.71
  5. Step 5: Solve for x
    x = 40,180,392.71/7,329.62
  6. Step 6: Final answer
    x = 5,481.92

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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.