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Finding the Fourth Proportional to 1,172.52, 1,748.31 and 1,043.73

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Solution

The fourth proportional to 1,172.52, 1,748.31 and 1,043.73 is: 1,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172.52 : 1,748.31 = 1,043.73 : x
  2. Step 2: Convert to fraction form
    1,172.52/1,748.31 = 1,043.73/x
  3. Step 3: Cross multiply
    1,172.52x = 1,748.31 × 1,043.73
  4. Step 4: Simplify right side
    1,172.52x = 1,824,763.60
  5. Step 5: Solve for x
    x = 1,824,763.60/1,172.52
  6. Step 6: Final answer
    x = 1,556.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.