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Finding the Fourth Proportional to 26,042.40, 39,049.20 and 8,503.20

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Solution

The fourth proportional to 26,042.40, 39,049.20 and 8,503.20 is: 12,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,042.40 : 39,049.20 = 8,503.20 : x
  2. Step 2: Convert to fraction form
    26,042.40/39,049.20 = 8,503.20/x
  3. Step 3: Cross multiply
    26,042.40x = 39,049.20 × 8,503.20
  4. Step 4: Simplify right side
    26,042.40x = 332,043,157.44
  5. Step 5: Solve for x
    x = 332,043,157.44/26,042.40
  6. Step 6: Final answer
    x = 12,750.10

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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.