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Finding the Fourth Proportional to 18,599.52, 27,899.28 and 4,748.52

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Solution

The fourth proportional to 18,599.52, 27,899.28 and 4,748.52 is: 7,122.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,599.52 : 27,899.28 = 4,748.52 : x
  2. Step 2: Convert to fraction form
    18,599.52/27,899.28 = 4,748.52/x
  3. Step 3: Cross multiply
    18,599.52x = 27,899.28 × 4,748.52
  4. Step 4: Simplify right side
    18,599.52x = 132,480,289.07
  5. Step 5: Solve for x
    x = 132,480,289.07/18,599.52
  6. Step 6: Final answer
    x = 7,122.78

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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.