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Finding the Fourth Proportional to 13,592.32, 18,744.96 and 8,874.88

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Solution

The fourth proportional to 13,592.32, 18,744.96 and 8,874.88 is: 12,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,592.32 : 18,744.96 = 8,874.88 : x
  2. Step 2: Convert to fraction form
    13,592.32/18,744.96 = 8,874.88/x
  3. Step 3: Cross multiply
    13,592.32x = 18,744.96 × 8,874.88
  4. Step 4: Simplify right side
    13,592.32x = 166,359,270.60
  5. Step 5: Solve for x
    x = 166,359,270.60/13,592.32
  6. Step 6: Final answer
    x = 12,239.21

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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.