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Finding the Fourth Proportional to 26,980.20, 37,230.84 and 15,043.20

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Solution

The fourth proportional to 26,980.20, 37,230.84 and 15,043.20 is: 20,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,980.20 : 37,230.84 = 15,043.20 : x
  2. Step 2: Convert to fraction form
    26,980.20/37,230.84 = 15,043.20/x
  3. Step 3: Cross multiply
    26,980.20x = 37,230.84 × 15,043.20
  4. Step 4: Simplify right side
    26,980.20x = 560,070,972.29
  5. Step 5: Solve for x
    x = 560,070,972.29/26,980.20
  6. Step 6: Final answer
    x = 20,758.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.