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Finding the Fourth Proportional to 5,372.68, 7,414.18 and 2,982.51

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Solution

The fourth proportional to 5,372.68, 7,414.18 and 2,982.51 is: 4,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.68 : 7,414.18 = 2,982.51 : x
  2. Step 2: Convert to fraction form
    5,372.68/7,414.18 = 2,982.51/x
  3. Step 3: Cross multiply
    5,372.68x = 7,414.18 × 2,982.51
  4. Step 4: Simplify right side
    5,372.68x = 22,112,865.99
  5. Step 5: Solve for x
    x = 22,112,865.99/5,372.68
  6. Step 6: Final answer
    x = 4,115.80

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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.