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Finding the Fourth Proportional to 3,531.90, 5,297.90 and 1,066.83

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Solution

The fourth proportional to 3,531.90, 5,297.90 and 1,066.83 is: 1,600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.90 : 5,297.90 = 1,066.83 : x
  2. Step 2: Convert to fraction form
    3,531.90/5,297.90 = 1,066.83/x
  3. Step 3: Cross multiply
    3,531.90x = 5,297.90 × 1,066.83
  4. Step 4: Simplify right side
    3,531.90x = 5,651,933.46
  5. Step 5: Solve for x
    x = 5,651,933.46/3,531.90
  6. Step 6: Final answer
    x = 1,600.25

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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.