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Finding the Fourth Proportional to 14,844.40, 20,489.16 and 8,882.80

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Solution

The fourth proportional to 14,844.40, 20,489.16 and 8,882.80 is: 12,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,844.40 : 20,489.16 = 8,882.80 : x
  2. Step 2: Convert to fraction form
    14,844.40/20,489.16 = 8,882.80/x
  3. Step 3: Cross multiply
    14,844.40x = 20,489.16 × 8,882.80
  4. Step 4: Simplify right side
    14,844.40x = 182,001,110.45
  5. Step 5: Solve for x
    x = 182,001,110.45/14,844.40
  6. Step 6: Final answer
    x = 12,260.59

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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.