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Finding the Fourth Proportional to 3,833.68, 5,290.56 and 2,995.32

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Solution

The fourth proportional to 3,833.68, 5,290.56 and 2,995.32 is: 4,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.68 : 5,290.56 = 2,995.32 : x
  2. Step 2: Convert to fraction form
    3,833.68/5,290.56 = 2,995.32/x
  3. Step 3: Cross multiply
    3,833.68x = 5,290.56 × 2,995.32
  4. Step 4: Simplify right side
    3,833.68x = 15,846,920.18
  5. Step 5: Solve for x
    x = 15,846,920.18/3,833.68
  6. Step 6: Final answer
    x = 4,133.61

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1.5x scale

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.