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Finding the Fourth Proportional to 26,867.70, 40,287.15 and 11,267.70

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Solution

The fourth proportional to 26,867.70, 40,287.15 and 11,267.70 is: 16,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,867.70 : 40,287.15 = 11,267.70 : x
  2. Step 2: Convert to fraction form
    26,867.70/40,287.15 = 11,267.70/x
  3. Step 3: Cross multiply
    26,867.70x = 40,287.15 × 11,267.70
  4. Step 4: Simplify right side
    26,867.70x = 453,943,520.06
  5. Step 5: Solve for x
    x = 453,943,520.06/26,867.70
  6. Step 6: Final answer
    x = 16,895.51

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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.