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Finding the Fourth Proportional to 3,742.71, 5,614.20 and 969.48

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Solution

The fourth proportional to 3,742.71, 5,614.20 and 969.48 is: 1,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.71 : 5,614.20 = 969.48 : x
  2. Step 2: Convert to fraction form
    3,742.71/5,614.20 = 969.48/x
  3. Step 3: Cross multiply
    3,742.71x = 5,614.20 × 969.48
  4. Step 4: Simplify right side
    3,742.71x = 5,442,854.62
  5. Step 5: Solve for x
    x = 5,442,854.62/3,742.71
  6. Step 6: Final answer
    x = 1,454.25

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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.