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Finding the Fourth Proportional to 5,910.16, 8,867.86 and 2,990.48

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Solution

The fourth proportional to 5,910.16, 8,867.86 and 2,990.48 is: 4,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,910.16 : 8,867.86 = 2,990.48 : x
  2. Step 2: Convert to fraction form
    5,910.16/8,867.86 = 2,990.48/x
  3. Step 3: Cross multiply
    5,910.16x = 8,867.86 × 2,990.48
  4. Step 4: Simplify right side
    5,910.16x = 26,519,157.97
  5. Step 5: Solve for x
    x = 26,519,157.97/5,910.16
  6. Step 6: Final answer
    x = 4,487.05

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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.