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Finding the Fourth Proportional to 5,860.81, 8,090.85 and 3,982.29

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Solution

The fourth proportional to 5,860.81, 8,090.85 and 3,982.29 is: 5,497.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,860.81 : 8,090.85 = 3,982.29 : x
  2. Step 2: Convert to fraction form
    5,860.81/8,090.85 = 3,982.29/x
  3. Step 3: Cross multiply
    5,860.81x = 8,090.85 × 3,982.29
  4. Step 4: Simplify right side
    5,860.81x = 32,220,111.05
  5. Step 5: Solve for x
    x = 32,220,111.05/5,860.81
  6. Step 6: Final answer
    x = 5,497.55

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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.