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Finding the Fourth Proportional to 16,391.88, 24,600 and 7,632.90

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Solution

The fourth proportional to 16,391.88, 24,600 and 7,632.90 is: 11,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,391.88 : 24,600 = 7,632.90 : x
  2. Step 2: Convert to fraction form
    16,391.88/24,600 = 7,632.90/x
  3. Step 3: Cross multiply
    16,391.88x = 24,600 × 7,632.90
  4. Step 4: Simplify right side
    16,391.88x = 187,769,340
  5. Step 5: Solve for x
    x = 187,769,340/16,391.88
  6. Step 6: Final answer
    x = 11,455.02

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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.