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Finding the Fourth Proportional to 5,767.92, 8,645.96 and 4,378.31

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Solution

The fourth proportional to 5,767.92, 8,645.96 and 4,378.31 is: 6,562.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,767.92 : 8,645.96 = 4,378.31 : x
  2. Step 2: Convert to fraction form
    5,767.92/8,645.96 = 4,378.31/x
  3. Step 3: Cross multiply
    5,767.92x = 8,645.96 × 4,378.31
  4. Step 4: Simplify right side
    5,767.92x = 37,854,671.51
  5. Step 5: Solve for x
    x = 37,854,671.51/5,767.92
  6. Step 6: Final answer
    x = 6,562.97

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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.