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Finding the Fourth Proportional to 2,335.68, 3,223.86 and 1,579.11

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Solution

The fourth proportional to 2,335.68, 3,223.86 and 1,579.11 is: 2,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.68 : 3,223.86 = 1,579.11 : x
  2. Step 2: Convert to fraction form
    2,335.68/3,223.86 = 1,579.11/x
  3. Step 3: Cross multiply
    2,335.68x = 3,223.86 × 1,579.11
  4. Step 4: Simplify right side
    2,335.68x = 5,090,832.39
  5. Step 5: Solve for x
    x = 5,090,832.39/2,335.68
  6. Step 6: Final answer
    x = 2,179.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.