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Finding the Fourth Proportional to 15,078.15, 22,616.52 and 7,174.88

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Solution

The fourth proportional to 15,078.15, 22,616.52 and 7,174.88 is: 10,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.15 : 22,616.52 = 7,174.88 : x
  2. Step 2: Convert to fraction form
    15,078.15/22,616.52 = 7,174.88/x
  3. Step 3: Cross multiply
    15,078.15x = 22,616.52 × 7,174.88
  4. Step 4: Simplify right side
    15,078.15x = 162,270,761.84
  5. Step 5: Solve for x
    x = 162,270,761.84/15,078.15
  6. Step 6: Final answer
    x = 10,761.98

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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.