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Finding the Fourth Proportional to 15,909.72, 23,868.24 and 8,896.76

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Solution

The fourth proportional to 15,909.72, 23,868.24 and 8,896.76 is: 13,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,909.72 : 23,868.24 = 8,896.76 : x
  2. Step 2: Convert to fraction form
    15,909.72/23,868.24 = 8,896.76/x
  3. Step 3: Cross multiply
    15,909.72x = 23,868.24 × 8,896.76
  4. Step 4: Simplify right side
    15,909.72x = 212,350,002.90
  5. Step 5: Solve for x
    x = 212,350,002.90/15,909.72
  6. Step 6: Final answer
    x = 13,347.19

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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.