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Finding the Fourth Proportional to 3,951.69, 5,925.23 and 1,486.70

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Solution

The fourth proportional to 3,951.69, 5,925.23 and 1,486.70 is: 2,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.69 : 5,925.23 = 1,486.70 : x
  2. Step 2: Convert to fraction form
    3,951.69/5,925.23 = 1,486.70/x
  3. Step 3: Cross multiply
    3,951.69x = 5,925.23 × 1,486.70
  4. Step 4: Simplify right side
    3,951.69x = 8,809,002.38
  5. Step 5: Solve for x
    x = 8,809,002.38/3,951.69
  6. Step 6: Final answer
    x = 2,229.17

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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.