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Finding the Fourth Proportional to 10,360.59, 15,540.89 and 8,933.58

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Solution

The fourth proportional to 10,360.59, 15,540.89 and 8,933.58 is: 13,400.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.59 : 15,540.89 = 8,933.58 : x
  2. Step 2: Convert to fraction form
    10,360.59/15,540.89 = 8,933.58/x
  3. Step 3: Cross multiply
    10,360.59x = 15,540.89 × 8,933.58
  4. Step 4: Simplify right side
    10,360.59x = 138,835,739.42
  5. Step 5: Solve for x
    x = 138,835,739.42/10,360.59
  6. Step 6: Final answer
    x = 13,400.37

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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.