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Finding the Fourth Proportional to 3,839.84, 5,759.18 and 1,066.22

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Solution

The fourth proportional to 3,839.84, 5,759.18 and 1,066.22 is: 1,599.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.84 : 5,759.18 = 1,066.22 : x
  2. Step 2: Convert to fraction form
    3,839.84/5,759.18 = 1,066.22/x
  3. Step 3: Cross multiply
    3,839.84x = 5,759.18 × 1,066.22
  4. Step 4: Simplify right side
    3,839.84x = 6,140,552.90
  5. Step 5: Solve for x
    x = 6,140,552.90/3,839.84
  6. Step 6: Final answer
    x = 1,599.17

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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.