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Finding the Fourth Proportional to 15,959.96, 22,023.80 and 9,245.12

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Solution

The fourth proportional to 15,959.96, 22,023.80 and 9,245.12 is: 12,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,959.96 : 22,023.80 = 9,245.12 : x
  2. Step 2: Convert to fraction form
    15,959.96/22,023.80 = 9,245.12/x
  3. Step 3: Cross multiply
    15,959.96x = 22,023.80 × 9,245.12
  4. Step 4: Simplify right side
    15,959.96x = 203,612,673.86
  5. Step 5: Solve for x
    x = 203,612,673.86/15,959.96
  6. Step 6: Final answer
    x = 12,757.72

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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.