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Finding the Fourth Proportional to 3,143.18, 4,744.31 and 3,143.18

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Solution

The fourth proportional to 3,143.18, 4,744.31 and 3,143.18 is: 4,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.18 : 4,744.31 = 3,143.18 : x
  2. Step 2: Convert to fraction form
    3,143.18/4,744.31 = 3,143.18/x
  3. Step 3: Cross multiply
    3,143.18x = 4,744.31 × 3,143.18
  4. Step 4: Simplify right side
    3,143.18x = 14,912,220.31
  5. Step 5: Solve for x
    x = 14,912,220.31/3,143.18
  6. Step 6: Final answer
    x = 4,744.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.