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Finding the Fourth Proportional to 6,616.10, 9,918.95 and 4,529.79

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Solution

The fourth proportional to 6,616.10, 9,918.95 and 4,529.79 is: 6,791.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.10 : 9,918.95 = 4,529.79 : x
  2. Step 2: Convert to fraction form
    6,616.10/9,918.95 = 4,529.79/x
  3. Step 3: Cross multiply
    6,616.10x = 9,918.95 × 4,529.79
  4. Step 4: Simplify right side
    6,616.10x = 44,930,737.87
  5. Step 5: Solve for x
    x = 44,930,737.87/6,616.10
  6. Step 6: Final answer
    x = 6,791.12

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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.