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Finding the Fourth Proportional to 15,163.78, 22,732.71 and 9,958.18

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Solution

The fourth proportional to 15,163.78, 22,732.71 and 9,958.18 is: 14,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,163.78 : 22,732.71 = 9,958.18 : x
  2. Step 2: Convert to fraction form
    15,163.78/22,732.71 = 9,958.18/x
  3. Step 3: Cross multiply
    15,163.78x = 22,732.71 × 9,958.18
  4. Step 4: Simplify right side
    15,163.78x = 226,376,418.07
  5. Step 5: Solve for x
    x = 226,376,418.07/15,163.78
  6. Step 6: Final answer
    x = 14,928.76

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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.