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Finding the Fourth Proportional to 22,745.76, 34,086.62 and 8,690.64

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Solution

The fourth proportional to 22,745.76, 34,086.62 and 8,690.64 is: 13,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.76 : 34,086.62 = 8,690.64 : x
  2. Step 2: Convert to fraction form
    22,745.76/34,086.62 = 8,690.64/x
  3. Step 3: Cross multiply
    22,745.76x = 34,086.62 × 8,690.64
  4. Step 4: Simplify right side
    22,745.76x = 296,234,543.24
  5. Step 5: Solve for x
    x = 296,234,543.24/22,745.76
  6. Step 6: Final answer
    x = 13,023.73

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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.