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Finding the Fourth Proportional to 10,876.88, 15,010.10 and 6,161.17

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Solution

The fourth proportional to 10,876.88, 15,010.10 and 6,161.17 is: 8,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.88 : 15,010.10 = 6,161.17 : x
  2. Step 2: Convert to fraction form
    10,876.88/15,010.10 = 6,161.17/x
  3. Step 3: Cross multiply
    10,876.88x = 15,010.10 × 6,161.17
  4. Step 4: Simplify right side
    10,876.88x = 92,479,777.82
  5. Step 5: Solve for x
    x = 92,479,777.82/10,876.88
  6. Step 6: Final answer
    x = 8,502.42

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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.