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Finding the Fourth Proportional to 26,672.30, 40,008.45 and 8,201.90

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Solution

The fourth proportional to 26,672.30, 40,008.45 and 8,201.90 is: 12,302.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,672.30 : 40,008.45 = 8,201.90 : x
  2. Step 2: Convert to fraction form
    26,672.30/40,008.45 = 8,201.90/x
  3. Step 3: Cross multiply
    26,672.30x = 40,008.45 × 8,201.90
  4. Step 4: Simplify right side
    26,672.30x = 328,145,306.06
  5. Step 5: Solve for x
    x = 328,145,306.06/26,672.30
  6. Step 6: Final answer
    x = 12,302.85

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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.