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Finding the Fourth Proportional to 26,882.46, 40,344.66 and 18,620.46

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Solution

The fourth proportional to 26,882.46, 40,344.66 and 18,620.46 is: 27,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,882.46 : 40,344.66 = 18,620.46 : x
  2. Step 2: Convert to fraction form
    26,882.46/40,344.66 = 18,620.46/x
  3. Step 3: Cross multiply
    26,882.46x = 40,344.66 × 18,620.46
  4. Step 4: Simplify right side
    26,882.46x = 751,236,127.74
  5. Step 5: Solve for x
    x = 751,236,127.74/26,882.46
  6. Step 6: Final answer
    x = 27,945.22

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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.