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Finding the Fourth Proportional to 10,876.86, 15,010.08 and 5,908.86

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Solution

The fourth proportional to 10,876.86, 15,010.08 and 5,908.86 is: 8,154.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.86 : 15,010.08 = 5,908.86 : x
  2. Step 2: Convert to fraction form
    10,876.86/15,010.08 = 5,908.86/x
  3. Step 3: Cross multiply
    10,876.86x = 15,010.08 × 5,908.86
  4. Step 4: Simplify right side
    10,876.86x = 88,692,461.31
  5. Step 5: Solve for x
    x = 88,692,461.31/10,876.86
  6. Step 6: Final answer
    x = 8,154.23

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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.