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Finding the Fourth Proportional to 3,952.60, 5,929.19 and 1,179.05

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Solution

The fourth proportional to 3,952.60, 5,929.19 and 1,179.05 is: 1,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952.60 : 5,929.19 = 1,179.05 : x
  2. Step 2: Convert to fraction form
    3,952.60/5,929.19 = 1,179.05/x
  3. Step 3: Cross multiply
    3,952.60x = 5,929.19 × 1,179.05
  4. Step 4: Simplify right side
    3,952.60x = 6,990,811.47
  5. Step 5: Solve for x
    x = 6,990,811.47/3,952.60
  6. Step 6: Final answer
    x = 1,768.66

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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.