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Finding the Fourth Proportional to 12,882.46, 17,760.34 and 11,014.11

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Solution

The fourth proportional to 12,882.46, 17,760.34 and 11,014.11 is: 15,184.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.46 : 17,760.34 = 11,014.11 : x
  2. Step 2: Convert to fraction form
    12,882.46/17,760.34 = 11,014.11/x
  3. Step 3: Cross multiply
    12,882.46x = 17,760.34 × 11,014.11
  4. Step 4: Simplify right side
    12,882.46x = 195,614,338.40
  5. Step 5: Solve for x
    x = 195,614,338.40/12,882.46
  6. Step 6: Final answer
    x = 15,184.55

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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.