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Finding the Fourth Proportional to 5,757.38, 7,949.01 and 4,428.74

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Solution

The fourth proportional to 5,757.38, 7,949.01 and 4,428.74 is: 6,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,757.38 : 7,949.01 = 4,428.74 : x
  2. Step 2: Convert to fraction form
    5,757.38/7,949.01 = 4,428.74/x
  3. Step 3: Cross multiply
    5,757.38x = 7,949.01 × 4,428.74
  4. Step 4: Simplify right side
    5,757.38x = 35,204,098.55
  5. Step 5: Solve for x
    x = 35,204,098.55/5,757.38
  6. Step 6: Final answer
    x = 6,114.60

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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.