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Finding the Fourth Proportional to 5,080.25, 7,008.53 and 3,899.27

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Solution

The fourth proportional to 5,080.25, 7,008.53 and 3,899.27 is: 5,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080.25 : 7,008.53 = 3,899.27 : x
  2. Step 2: Convert to fraction form
    5,080.25/7,008.53 = 3,899.27/x
  3. Step 3: Cross multiply
    5,080.25x = 7,008.53 × 3,899.27
  4. Step 4: Simplify right side
    5,080.25x = 27,328,148.80
  5. Step 5: Solve for x
    x = 27,328,148.80/5,080.25
  6. Step 6: Final answer
    x = 5,379.29

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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.