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Finding the Fourth Proportional to 1,752.10, 2,627.46 and 711.94

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Solution

The fourth proportional to 1,752.10, 2,627.46 and 711.94 is: 1,067.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.10 : 2,627.46 = 711.94 : x
  2. Step 2: Convert to fraction form
    1,752.10/2,627.46 = 711.94/x
  3. Step 3: Cross multiply
    1,752.10x = 2,627.46 × 711.94
  4. Step 4: Simplify right side
    1,752.10x = 1,870,593.87
  5. Step 5: Solve for x
    x = 1,870,593.87/1,752.10
  6. Step 6: Final answer
    x = 1,067.63

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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.