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Finding the Fourth Proportional to 1,175.60, 1,765.80 and 1,034.60

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Solution

The fourth proportional to 1,175.60, 1,765.80 and 1,034.60 is: 1,554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.60 : 1,765.80 = 1,034.60 : x
  2. Step 2: Convert to fraction form
    1,175.60/1,765.80 = 1,034.60/x
  3. Step 3: Cross multiply
    1,175.60x = 1,765.80 × 1,034.60
  4. Step 4: Simplify right side
    1,175.60x = 1,826,896.68
  5. Step 5: Solve for x
    x = 1,826,896.68/1,175.60
  6. Step 6: Final answer
    x = 1,554.01

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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.