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Finding the Fourth Proportional to 15,958.48, 22,023.48 and 9,242.90

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Solution

The fourth proportional to 15,958.48, 22,023.48 and 9,242.90 is: 12,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,958.48 : 22,023.48 = 9,242.90 : x
  2. Step 2: Convert to fraction form
    15,958.48/22,023.48 = 9,242.90/x
  3. Step 3: Cross multiply
    15,958.48x = 22,023.48 × 9,242.90
  4. Step 4: Simplify right side
    15,958.48x = 203,560,823.29
  5. Step 5: Solve for x
    x = 203,560,823.29/15,958.48
  6. Step 6: Final answer
    x = 12,755.65

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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.