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Finding the Fourth Proportional to 3,959.13, 5,943.30 and 2,316.86

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Solution

The fourth proportional to 3,959.13, 5,943.30 and 2,316.86 is: 3,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.13 : 5,943.30 = 2,316.86 : x
  2. Step 2: Convert to fraction form
    3,959.13/5,943.30 = 2,316.86/x
  3. Step 3: Cross multiply
    3,959.13x = 5,943.30 × 2,316.86
  4. Step 4: Simplify right side
    3,959.13x = 13,769,794.04
  5. Step 5: Solve for x
    x = 13,769,794.04/3,959.13
  6. Step 6: Final answer
    x = 3,477.98

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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.