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Finding the Fourth Proportional to 11,760.98, 17,711.88 and 10,711.22

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Solution

The fourth proportional to 11,760.98, 17,711.88 and 10,711.22 is: 16,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,760.98 : 17,711.88 = 10,711.22 : x
  2. Step 2: Convert to fraction form
    11,760.98/17,711.88 = 10,711.22/x
  3. Step 3: Cross multiply
    11,760.98x = 17,711.88 × 10,711.22
  4. Step 4: Simplify right side
    11,760.98x = 189,715,789.74
  5. Step 5: Solve for x
    x = 189,715,789.74/11,760.98
  6. Step 6: Final answer
    x = 16,130.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.