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Finding the Fourth Proportional to 26,506.65, 36,581.25 and 15,179.70

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Solution

The fourth proportional to 26,506.65, 36,581.25 and 15,179.70 is: 20,949.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,506.65 : 36,581.25 = 15,179.70 : x
  2. Step 2: Convert to fraction form
    26,506.65/36,581.25 = 15,179.70/x
  3. Step 3: Cross multiply
    26,506.65x = 36,581.25 × 15,179.70
  4. Step 4: Simplify right side
    26,506.65x = 555,292,400.63
  5. Step 5: Solve for x
    x = 555,292,400.63/26,506.65
  6. Step 6: Final answer
    x = 20,949.17

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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.