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Finding the Fourth Proportional to 5,827.76, 8,042.31 and 3,175.16

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Solution

The fourth proportional to 5,827.76, 8,042.31 and 3,175.16 is: 4,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,827.76 : 8,042.31 = 3,175.16 : x
  2. Step 2: Convert to fraction form
    5,827.76/8,042.31 = 3,175.16/x
  3. Step 3: Cross multiply
    5,827.76x = 8,042.31 × 3,175.16
  4. Step 4: Simplify right side
    5,827.76x = 25,535,641.13
  5. Step 5: Solve for x
    x = 25,535,641.13/5,827.76
  6. Step 6: Final answer
    x = 4,381.73

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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.