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Finding the Fourth Proportional to 5,856.54, 8,781.57 and 1,958.82

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Solution

The fourth proportional to 5,856.54, 8,781.57 and 1,958.82 is: 2,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,856.54 : 8,781.57 = 1,958.82 : x
  2. Step 2: Convert to fraction form
    5,856.54/8,781.57 = 1,958.82/x
  3. Step 3: Cross multiply
    5,856.54x = 8,781.57 × 1,958.82
  4. Step 4: Simplify right side
    5,856.54x = 17,201,514.95
  5. Step 5: Solve for x
    x = 17,201,514.95/5,856.54
  6. Step 6: Final answer
    x = 2,937.15

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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.