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Finding the Fourth Proportional to 8,992.85, 12,410.12 and 5,013.88

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Solution

The fourth proportional to 8,992.85, 12,410.12 and 5,013.88 is: 6,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.85 : 12,410.12 = 5,013.88 : x
  2. Step 2: Convert to fraction form
    8,992.85/12,410.12 = 5,013.88/x
  3. Step 3: Cross multiply
    8,992.85x = 12,410.12 × 5,013.88
  4. Step 4: Simplify right side
    8,992.85x = 62,222,833.97
  5. Step 5: Solve for x
    x = 62,222,833.97/8,992.85
  6. Step 6: Final answer
    x = 6,919.15

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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.