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Finding the Fourth Proportional to 26,902.20, 40,338.90 and 11,302.20

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Solution

The fourth proportional to 26,902.20, 40,338.90 and 11,302.20 is: 16,947.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,902.20 : 40,338.90 = 11,302.20 : x
  2. Step 2: Convert to fraction form
    26,902.20/40,338.90 = 11,302.20/x
  3. Step 3: Cross multiply
    26,902.20x = 40,338.90 × 11,302.20
  4. Step 4: Simplify right side
    26,902.20x = 455,918,315.58
  5. Step 5: Solve for x
    x = 455,918,315.58/26,902.20
  6. Step 6: Final answer
    x = 16,947.25

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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.