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Finding the Fourth Proportional to 5,979.16, 8,968.76 and 2,899

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Solution

The fourth proportional to 5,979.16, 8,968.76 and 2,899 is: 4,348.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,979.16 : 8,968.76 = 2,899 : x
  2. Step 2: Convert to fraction form
    5,979.16/8,968.76 = 2,899/x
  3. Step 3: Cross multiply
    5,979.16x = 8,968.76 × 2,899
  4. Step 4: Simplify right side
    5,979.16x = 26,000,435.24
  5. Step 5: Solve for x
    x = 26,000,435.24/5,979.16
  6. Step 6: Final answer
    x = 4,348.51

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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.