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Finding the Fourth Proportional to 1,757.18, 2,629.56 and 1,293.86

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Solution

The fourth proportional to 1,757.18, 2,629.56 and 1,293.86 is: 1,936.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.18 : 2,629.56 = 1,293.86 : x
  2. Step 2: Convert to fraction form
    1,757.18/2,629.56 = 1,293.86/x
  3. Step 3: Cross multiply
    1,757.18x = 2,629.56 × 1,293.86
  4. Step 4: Simplify right side
    1,757.18x = 3,402,282.50
  5. Step 5: Solve for x
    x = 3,402,282.50/1,757.18
  6. Step 6: Final answer
    x = 1,936.22

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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.