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Finding the Fourth Proportional to 18,588.76, 27,850.74 and 15,488.68

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Solution

The fourth proportional to 18,588.76, 27,850.74 and 15,488.68 is: 23,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,588.76 : 27,850.74 = 15,488.68 : x
  2. Step 2: Convert to fraction form
    18,588.76/27,850.74 = 15,488.68/x
  3. Step 3: Cross multiply
    18,588.76x = 27,850.74 × 15,488.68
  4. Step 4: Simplify right side
    18,588.76x = 431,371,199.62
  5. Step 5: Solve for x
    x = 431,371,199.62/18,588.76
  6. Step 6: Final answer
    x = 23,206.02

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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.