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Finding the Fourth Proportional to 18,976.80, 26,187.84 and 10,593.28

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Solution

The fourth proportional to 18,976.80, 26,187.84 and 10,593.28 is: 14,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.80 : 26,187.84 = 10,593.28 : x
  2. Step 2: Convert to fraction form
    18,976.80/26,187.84 = 10,593.28/x
  3. Step 3: Cross multiply
    18,976.80x = 26,187.84 × 10,593.28
  4. Step 4: Simplify right side
    18,976.80x = 277,415,121.72
  5. Step 5: Solve for x
    x = 277,415,121.72/18,976.80
  6. Step 6: Final answer
    x = 14,618.65

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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.