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Finding the Fourth Proportional to 10,641.11, 14,687.74 and 6,393.52

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Solution

The fourth proportional to 10,641.11, 14,687.74 and 6,393.52 is: 8,824.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641.11 : 14,687.74 = 6,393.52 : x
  2. Step 2: Convert to fraction form
    10,641.11/14,687.74 = 6,393.52/x
  3. Step 3: Cross multiply
    10,641.11x = 14,687.74 × 6,393.52
  4. Step 4: Simplify right side
    10,641.11x = 93,906,359.44
  5. Step 5: Solve for x
    x = 93,906,359.44/10,641.11
  6. Step 6: Final answer
    x = 8,824.87

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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.