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Finding the Fourth Proportional to 3,143.71, 4,716.78 and 952.46

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Solution

The fourth proportional to 3,143.71, 4,716.78 and 952.46 is: 1,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.71 : 4,716.78 = 952.46 : x
  2. Step 2: Convert to fraction form
    3,143.71/4,716.78 = 952.46/x
  3. Step 3: Cross multiply
    3,143.71x = 4,716.78 × 952.46
  4. Step 4: Simplify right side
    3,143.71x = 4,492,515.93
  5. Step 5: Solve for x
    x = 4,492,515.93/3,143.71
  6. Step 6: Final answer
    x = 1,429.05

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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.