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Finding the Fourth Proportional to 10,863.67, 14,990.03 and 6,327.31

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Solution

The fourth proportional to 10,863.67, 14,990.03 and 6,327.31 is: 8,730.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.67 : 14,990.03 = 6,327.31 : x
  2. Step 2: Convert to fraction form
    10,863.67/14,990.03 = 6,327.31/x
  3. Step 3: Cross multiply
    10,863.67x = 14,990.03 × 6,327.31
  4. Step 4: Simplify right side
    10,863.67x = 94,846,566.72
  5. Step 5: Solve for x
    x = 94,846,566.72/10,863.67
  6. Step 6: Final answer
    x = 8,730.62

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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.