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Finding the Fourth Proportional to 8,862.68, 13,294.16 and 4,480.31

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Solution

The fourth proportional to 8,862.68, 13,294.16 and 4,480.31 is: 6,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.68 : 13,294.16 = 4,480.31 : x
  2. Step 2: Convert to fraction form
    8,862.68/13,294.16 = 4,480.31/x
  3. Step 3: Cross multiply
    8,862.68x = 13,294.16 × 4,480.31
  4. Step 4: Simplify right side
    8,862.68x = 59,561,869.12
  5. Step 5: Solve for x
    x = 59,561,869.12/8,862.68
  6. Step 6: Final answer
    x = 6,720.53

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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.