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Finding the Fourth Proportional to 10,863.88, 14,992.27 and 6,672.13

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Solution

The fourth proportional to 10,863.88, 14,992.27 and 6,672.13 is: 9,207.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.88 : 14,992.27 = 6,672.13 : x
  2. Step 2: Convert to fraction form
    10,863.88/14,992.27 = 6,672.13/x
  3. Step 3: Cross multiply
    10,863.88x = 14,992.27 × 6,672.13
  4. Step 4: Simplify right side
    10,863.88x = 100,030,320.27
  5. Step 5: Solve for x
    x = 100,030,320.27/10,863.88
  6. Step 6: Final answer
    x = 9,207.61

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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.