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Finding the Fourth Proportional to 3,952.54, 5,929.90 and 1,179.31

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Solution

The fourth proportional to 3,952.54, 5,929.90 and 1,179.31 is: 1,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.54 : 5,929.90 = 1,179.31 : x
  2. Step 2: Convert to fraction form
    3,952.54/5,929.90 = 1,179.31/x
  3. Step 3: Cross multiply
    3,952.54x = 5,929.90 × 1,179.31
  4. Step 4: Simplify right side
    3,952.54x = 6,993,160.72
  5. Step 5: Solve for x
    x = 6,993,160.72/3,952.54
  6. Step 6: Final answer
    x = 1,769.28

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1.5x scale

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.