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Finding the Fourth Proportional to 26,694.49, 36,838.79 and 15,516.49

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Solution

The fourth proportional to 26,694.49, 36,838.79 and 15,516.49 is: 21,412.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,694.49 : 36,838.79 = 15,516.49 : x
  2. Step 2: Convert to fraction form
    26,694.49/36,838.79 = 15,516.49/x
  3. Step 3: Cross multiply
    26,694.49x = 36,838.79 × 15,516.49
  4. Step 4: Simplify right side
    26,694.49x = 571,608,716.65
  5. Step 5: Solve for x
    x = 571,608,716.65/26,694.49
  6. Step 6: Final answer
    x = 21,412.99

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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.