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Finding the Fourth Proportional to 18,593.76, 27,891.93 and 7,500.57

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Solution

The fourth proportional to 18,593.76, 27,891.93 and 7,500.57 is: 11,251.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.76 : 27,891.93 = 7,500.57 : x
  2. Step 2: Convert to fraction form
    18,593.76/27,891.93 = 7,500.57/x
  3. Step 3: Cross multiply
    18,593.76x = 27,891.93 × 7,500.57
  4. Step 4: Simplify right side
    18,593.76x = 209,205,373.40
  5. Step 5: Solve for x
    x = 209,205,373.40/18,593.76
  6. Step 6: Final answer
    x = 11,251.38

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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.