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Finding the Fourth Proportional to 4,659.97, 6,990.19 and 1,540.26

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Solution

The fourth proportional to 4,659.97, 6,990.19 and 1,540.26 is: 2,310.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659.97 : 6,990.19 = 1,540.26 : x
  2. Step 2: Convert to fraction form
    4,659.97/6,990.19 = 1,540.26/x
  3. Step 3: Cross multiply
    4,659.97x = 6,990.19 × 1,540.26
  4. Step 4: Simplify right side
    4,659.97x = 10,766,675.10
  5. Step 5: Solve for x
    x = 10,766,675.10/4,659.97
  6. Step 6: Final answer
    x = 2,310.46

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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.