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Finding the Fourth Proportional to 5,613.88, 7,744.14 and 3,375.16

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Solution

The fourth proportional to 5,613.88, 7,744.14 and 3,375.16 is: 4,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.88 : 7,744.14 = 3,375.16 : x
  2. Step 2: Convert to fraction form
    5,613.88/7,744.14 = 3,375.16/x
  3. Step 3: Cross multiply
    5,613.88x = 7,744.14 × 3,375.16
  4. Step 4: Simplify right side
    5,613.88x = 26,137,711.56
  5. Step 5: Solve for x
    x = 26,137,711.56/5,613.88
  6. Step 6: Final answer
    x = 4,655.91

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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.