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Finding the Fourth Proportional to 16,579.98, 24,868.92 and 6,720

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Solution

The fourth proportional to 16,579.98, 24,868.92 and 6,720 is: 10,079.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,579.98 : 24,868.92 = 6,720 : x
  2. Step 2: Convert to fraction form
    16,579.98/24,868.92 = 6,720/x
  3. Step 3: Cross multiply
    16,579.98x = 24,868.92 × 6,720
  4. Step 4: Simplify right side
    16,579.98x = 167,119,142.40
  5. Step 5: Solve for x
    x = 167,119,142.40/16,579.98
  6. Step 6: Final answer
    x = 10,079.57

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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.