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Finding the Fourth Proportional to 3,693.86, 5,540.78 and 1,746.26

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Solution

The fourth proportional to 3,693.86, 5,540.78 and 1,746.26 is: 2,619.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,693.86 : 5,540.78 = 1,746.26 : x
  2. Step 2: Convert to fraction form
    3,693.86/5,540.78 = 1,746.26/x
  3. Step 3: Cross multiply
    3,693.86x = 5,540.78 × 1,746.26
  4. Step 4: Simplify right side
    3,693.86x = 9,675,619.14
  5. Step 5: Solve for x
    x = 9,675,619.14/3,693.86
  6. Step 6: Final answer
    x = 2,619.38

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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.