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Finding the Fourth Proportional to 3,346.66, 5,020 and 3,143.68

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Solution

The fourth proportional to 3,346.66, 5,020 and 3,143.68 is: 4,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,346.66 : 5,020 = 3,143.68 : x
  2. Step 2: Convert to fraction form
    3,346.66/5,020 = 3,143.68/x
  3. Step 3: Cross multiply
    3,346.66x = 5,020 × 3,143.68
  4. Step 4: Simplify right side
    3,346.66x = 15,781,273.60
  5. Step 5: Solve for x
    x = 15,781,273.60/3,346.66
  6. Step 6: Final answer
    x = 4,715.53

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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.