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Finding the Fourth Proportional to 2,425.71, 3,639.78 and 967.71

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Solution

The fourth proportional to 2,425.71, 3,639.78 and 967.71 is: 1,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,425.71 : 3,639.78 = 967.71 : x
  2. Step 2: Convert to fraction form
    2,425.71/3,639.78 = 967.71/x
  3. Step 3: Cross multiply
    2,425.71x = 3,639.78 × 967.71
  4. Step 4: Simplify right side
    2,425.71x = 3,522,251.50
  5. Step 5: Solve for x
    x = 3,522,251.50/2,425.71
  6. Step 6: Final answer
    x = 1,452.05

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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.