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Finding the Fourth Proportional to 22,672.32, 34,023.60 and 8,645.28

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Solution

The fourth proportional to 22,672.32, 34,023.60 and 8,645.28 is: 12,973.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,672.32 : 34,023.60 = 8,645.28 : x
  2. Step 2: Convert to fraction form
    22,672.32/34,023.60 = 8,645.28/x
  3. Step 3: Cross multiply
    22,672.32x = 34,023.60 × 8,645.28
  4. Step 4: Simplify right side
    22,672.32x = 294,143,548.61
  5. Step 5: Solve for x
    x = 294,143,548.61/22,672.32
  6. Step 6: Final answer
    x = 12,973.69

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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.