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Finding the Fourth Proportional to 6,305.42, 8,702.31 and 4,073.79

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Solution

The fourth proportional to 6,305.42, 8,702.31 and 4,073.79 is: 5,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,305.42 : 8,702.31 = 4,073.79 : x
  2. Step 2: Convert to fraction form
    6,305.42/8,702.31 = 4,073.79/x
  3. Step 3: Cross multiply
    6,305.42x = 8,702.31 × 4,073.79
  4. Step 4: Simplify right side
    6,305.42x = 35,451,350.13
  5. Step 5: Solve for x
    x = 35,451,350.13/6,305.42
  6. Step 6: Final answer
    x = 5,622.36

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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.