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Finding the Fourth Proportional to 14,520.75, 20,044.76 and 9,811.41

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Solution

The fourth proportional to 14,520.75, 20,044.76 and 9,811.41 is: 13,543.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.75 : 20,044.76 = 9,811.41 : x
  2. Step 2: Convert to fraction form
    14,520.75/20,044.76 = 9,811.41/x
  3. Step 3: Cross multiply
    14,520.75x = 20,044.76 × 9,811.41
  4. Step 4: Simplify right side
    14,520.75x = 196,667,358.71
  5. Step 5: Solve for x
    x = 196,667,358.71/14,520.75
  6. Step 6: Final answer
    x = 13,543.88

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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.