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Finding the Fourth Proportional to 3,809.32, 5,713.82 and 1,073.32

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Solution

The fourth proportional to 3,809.32, 5,713.82 and 1,073.32 is: 1,609.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.32 : 5,713.82 = 1,073.32 : x
  2. Step 2: Convert to fraction form
    3,809.32/5,713.82 = 1,073.32/x
  3. Step 3: Cross multiply
    3,809.32x = 5,713.82 × 1,073.32
  4. Step 4: Simplify right side
    3,809.32x = 6,132,757.28
  5. Step 5: Solve for x
    x = 6,132,757.28/3,809.32
  6. Step 6: Final answer
    x = 1,609.93

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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.