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Finding the Fourth Proportional to 18,600.96, 27,901.44 and 6,288

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Solution

The fourth proportional to 18,600.96, 27,901.44 and 6,288 is: 9,432

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.96 : 27,901.44 = 6,288 : x
  2. Step 2: Convert to fraction form
    18,600.96/27,901.44 = 6,288/x
  3. Step 3: Cross multiply
    18,600.96x = 27,901.44 × 6,288
  4. Step 4: Simplify right side
    18,600.96x = 175,444,254.72
  5. Step 5: Solve for x
    x = 175,444,254.72/18,600.96
  6. Step 6: Final answer
    x = 9,432

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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.