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Finding the Fourth Proportional to 5,971.76, 8,240.52 and 3,318.32

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Solution

The fourth proportional to 5,971.76, 8,240.52 and 3,318.32 is: 4,579.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,971.76 : 8,240.52 = 3,318.32 : x
  2. Step 2: Convert to fraction form
    5,971.76/8,240.52 = 3,318.32/x
  3. Step 3: Cross multiply
    5,971.76x = 8,240.52 × 3,318.32
  4. Step 4: Simplify right side
    5,971.76x = 27,344,682.33
  5. Step 5: Solve for x
    x = 27,344,682.33/5,971.76
  6. Step 6: Final answer
    x = 4,579.00

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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.