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Finding the Fourth Proportional to 14,760.98, 20,367.84 and 8,472.14

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Solution

The fourth proportional to 14,760.98, 20,367.84 and 8,472.14 is: 11,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,760.98 : 20,367.84 = 8,472.14 : x
  2. Step 2: Convert to fraction form
    14,760.98/20,367.84 = 8,472.14/x
  3. Step 3: Cross multiply
    14,760.98x = 20,367.84 × 8,472.14
  4. Step 4: Simplify right side
    14,760.98x = 172,559,191.98
  5. Step 5: Solve for x
    x = 172,559,191.98/14,760.98
  6. Step 6: Final answer
    x = 11,690.23

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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.