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Finding the Fourth Proportional to 5,648.68, 8,472.21 and 2,726.20

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Solution

The fourth proportional to 5,648.68, 8,472.21 and 2,726.20 is: 4,088.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648.68 : 8,472.21 = 2,726.20 : x
  2. Step 2: Convert to fraction form
    5,648.68/8,472.21 = 2,726.20/x
  3. Step 3: Cross multiply
    5,648.68x = 8,472.21 × 2,726.20
  4. Step 4: Simplify right side
    5,648.68x = 23,096,938.90
  5. Step 5: Solve for x
    x = 23,096,938.90/5,648.68
  6. Step 6: Final answer
    x = 4,088.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.