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Finding the Fourth Proportional to 4,469.69, 6,705.12 and 1,658.13

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Solution

The fourth proportional to 4,469.69, 6,705.12 and 1,658.13 is: 2,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,469.69 : 6,705.12 = 1,658.13 : x
  2. Step 2: Convert to fraction form
    4,469.69/6,705.12 = 1,658.13/x
  3. Step 3: Cross multiply
    4,469.69x = 6,705.12 × 1,658.13
  4. Step 4: Simplify right side
    4,469.69x = 11,117,960.63
  5. Step 5: Solve for x
    x = 11,117,960.63/4,469.69
  6. Step 6: Final answer
    x = 2,487.41

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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.