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Finding the Fourth Proportional to 2,409.43, 3,615.36 and 850.18

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Solution

The fourth proportional to 2,409.43, 3,615.36 and 850.18 is: 1,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,409.43 : 3,615.36 = 850.18 : x
  2. Step 2: Convert to fraction form
    2,409.43/3,615.36 = 850.18/x
  3. Step 3: Cross multiply
    2,409.43x = 3,615.36 × 850.18
  4. Step 4: Simplify right side
    2,409.43x = 3,073,706.76
  5. Step 5: Solve for x
    x = 3,073,706.76/2,409.43
  6. Step 6: Final answer
    x = 1,275.70

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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.