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Finding the Fourth Proportional to 5,652.38, 8,422.18 and 5,400.88

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Solution

The fourth proportional to 5,652.38, 8,422.18 and 5,400.88 is: 8,047.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,652.38 : 8,422.18 = 5,400.88 : x
  2. Step 2: Convert to fraction form
    5,652.38/8,422.18 = 5,400.88/x
  3. Step 3: Cross multiply
    5,652.38x = 8,422.18 × 5,400.88
  4. Step 4: Simplify right side
    5,652.38x = 45,487,148.96
  5. Step 5: Solve for x
    x = 45,487,148.96/5,652.38
  6. Step 6: Final answer
    x = 8,047.43

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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.