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Finding the Fourth Proportional to 22,791.60, 34,171.20 and 8,746.20

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Solution

The fourth proportional to 22,791.60, 34,171.20 and 8,746.20 is: 13,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.60 : 34,171.20 = 8,746.20 : x
  2. Step 2: Convert to fraction form
    22,791.60/34,171.20 = 8,746.20/x
  3. Step 3: Cross multiply
    22,791.60x = 34,171.20 × 8,746.20
  4. Step 4: Simplify right side
    22,791.60x = 298,868,149.44
  5. Step 5: Solve for x
    x = 298,868,149.44/22,791.60
  6. Step 6: Final answer
    x = 13,113.08

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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.