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Finding the Fourth Proportional to 2,517.70, 3,776.56 and 957.34

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Solution

The fourth proportional to 2,517.70, 3,776.56 and 957.34 is: 1,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,517.70 : 3,776.56 = 957.34 : x
  2. Step 2: Convert to fraction form
    2,517.70/3,776.56 = 957.34/x
  3. Step 3: Cross multiply
    2,517.70x = 3,776.56 × 957.34
  4. Step 4: Simplify right side
    2,517.70x = 3,615,451.95
  5. Step 5: Solve for x
    x = 3,615,451.95/2,517.70
  6. Step 6: Final answer
    x = 1,436.01

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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.