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Finding the Fourth Proportional to 16,239.00, 24,362.78 and 6,879.40

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Solution

The fourth proportional to 16,239.00, 24,362.78 and 6,879.40 is: 10,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.00 : 24,362.78 = 6,879.40 : x
  2. Step 2: Convert to fraction form
    16,239.00/24,362.78 = 6,879.40/x
  3. Step 3: Cross multiply
    16,239.00x = 24,362.78 × 6,879.40
  4. Step 4: Simplify right side
    16,239.00x = 167,601,356.38
  5. Step 5: Solve for x
    x = 167,601,356.38/16,239.00
  6. Step 6: Final answer
    x = 10,320.91

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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.