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Finding the Fourth Proportional to 10,481.80, 15,726.18 and 8,933.56

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Solution

The fourth proportional to 10,481.80, 15,726.18 and 8,933.56 is: 13,403.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.80 : 15,726.18 = 8,933.56 : x
  2. Step 2: Convert to fraction form
    10,481.80/15,726.18 = 8,933.56/x
  3. Step 3: Cross multiply
    10,481.80x = 15,726.18 × 8,933.56
  4. Step 4: Simplify right side
    10,481.80x = 140,490,772.60
  5. Step 5: Solve for x
    x = 140,490,772.60/10,481.80
  6. Step 6: Final answer
    x = 13,403.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.