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Finding the Fourth Proportional to 3,967.55, 5,476.22 and 2,375.13

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Solution

The fourth proportional to 3,967.55, 5,476.22 and 2,375.13 is: 3,278.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.55 : 5,476.22 = 2,375.13 : x
  2. Step 2: Convert to fraction form
    3,967.55/5,476.22 = 2,375.13/x
  3. Step 3: Cross multiply
    3,967.55x = 5,476.22 × 2,375.13
  4. Step 4: Simplify right side
    3,967.55x = 13,006,734.41
  5. Step 5: Solve for x
    x = 13,006,734.41/3,967.55
  6. Step 6: Final answer
    x = 3,278.28

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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.