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Finding the Fourth Proportional to 8,862.24, 12,234.32 and 6,868.32

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Solution

The fourth proportional to 8,862.24, 12,234.32 and 6,868.32 is: 9,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.24 : 12,234.32 = 6,868.32 : x
  2. Step 2: Convert to fraction form
    8,862.24/12,234.32 = 6,868.32/x
  3. Step 3: Cross multiply
    8,862.24x = 12,234.32 × 6,868.32
  4. Step 4: Simplify right side
    8,862.24x = 84,029,224.74
  5. Step 5: Solve for x
    x = 84,029,224.74/8,862.24
  6. Step 6: Final answer
    x = 9,481.71

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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.