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Finding the Fourth Proportional to 5,331.98, 7,999.12 and 1,634.47

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Solution

The fourth proportional to 5,331.98, 7,999.12 and 1,634.47 is: 2,452.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.98 : 7,999.12 = 1,634.47 : x
  2. Step 2: Convert to fraction form
    5,331.98/7,999.12 = 1,634.47/x
  3. Step 3: Cross multiply
    5,331.98x = 7,999.12 × 1,634.47
  4. Step 4: Simplify right side
    5,331.98x = 13,074,317.80
  5. Step 5: Solve for x
    x = 13,074,317.80/5,331.98
  6. Step 6: Final answer
    x = 2,452.06

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1.5x scale

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.