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Finding the Fourth Proportional to 1,757.66, 2,636.49 and 935.75

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Solution

The fourth proportional to 1,757.66, 2,636.49 and 935.75 is: 1,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.66 : 2,636.49 = 935.75 : x
  2. Step 2: Convert to fraction form
    1,757.66/2,636.49 = 935.75/x
  3. Step 3: Cross multiply
    1,757.66x = 2,636.49 × 935.75
  4. Step 4: Simplify right side
    1,757.66x = 2,467,082.34
  5. Step 5: Solve for x
    x = 2,467,082.34/1,757.66
  6. Step 6: Final answer
    x = 1,403.62

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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.