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Finding the Fourth Proportional to 2,684.33, 4,026.32 and 929.29

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Solution

The fourth proportional to 2,684.33, 4,026.32 and 929.29 is: 1,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.33 : 4,026.32 = 929.29 : x
  2. Step 2: Convert to fraction form
    2,684.33/4,026.32 = 929.29/x
  3. Step 3: Cross multiply
    2,684.33x = 4,026.32 × 929.29
  4. Step 4: Simplify right side
    2,684.33x = 3,741,618.91
  5. Step 5: Solve for x
    x = 3,741,618.91/2,684.33
  6. Step 6: Final answer
    x = 1,393.87

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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.