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Finding the Fourth Proportional to 16,603.65, 24,891.90 and 7,724.51

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Solution

The fourth proportional to 16,603.65, 24,891.90 and 7,724.51 is: 11,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,603.65 : 24,891.90 = 7,724.51 : x
  2. Step 2: Convert to fraction form
    16,603.65/24,891.90 = 7,724.51/x
  3. Step 3: Cross multiply
    16,603.65x = 24,891.90 × 7,724.51
  4. Step 4: Simplify right side
    16,603.65x = 192,277,691.85
  5. Step 5: Solve for x
    x = 192,277,691.85/16,603.65
  6. Step 6: Final answer
    x = 11,580.45

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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.