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Finding the Fourth Proportional to 3,708.76, 5,542.65 and 2,974.90

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Solution

The fourth proportional to 3,708.76, 5,542.65 and 2,974.90 is: 4,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.76 : 5,542.65 = 2,974.90 : x
  2. Step 2: Convert to fraction form
    3,708.76/5,542.65 = 2,974.90/x
  3. Step 3: Cross multiply
    3,708.76x = 5,542.65 × 2,974.90
  4. Step 4: Simplify right side
    3,708.76x = 16,488,829.49
  5. Step 5: Solve for x
    x = 16,488,829.49/3,708.76
  6. Step 6: Final answer
    x = 4,445.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.