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Finding the Fourth Proportional to 26,755.25, 36,922.16 and 15,424.70

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Solution

The fourth proportional to 26,755.25, 36,922.16 and 15,424.70 is: 21,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,755.25 : 36,922.16 = 15,424.70 : x
  2. Step 2: Convert to fraction form
    26,755.25/36,922.16 = 15,424.70/x
  3. Step 3: Cross multiply
    26,755.25x = 36,922.16 × 15,424.70
  4. Step 4: Simplify right side
    26,755.25x = 569,513,095.30
  5. Step 5: Solve for x
    x = 569,513,095.30/26,755.25
  6. Step 6: Final answer
    x = 21,286.04

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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.