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Finding the Fourth Proportional to 26,872.70, 40,294.65 and 11,272.70

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Solution

The fourth proportional to 26,872.70, 40,294.65 and 11,272.70 is: 16,903.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,872.70 : 40,294.65 = 11,272.70 : x
  2. Step 2: Convert to fraction form
    26,872.70/40,294.65 = 11,272.70/x
  3. Step 3: Cross multiply
    26,872.70x = 40,294.65 × 11,272.70
  4. Step 4: Simplify right side
    26,872.70x = 454,229,501.06
  5. Step 5: Solve for x
    x = 454,229,501.06/26,872.70
  6. Step 6: Final answer
    x = 16,903.01

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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.