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Finding the Fourth Proportional to 1,165.93, 1,609.30 and 793.53

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Solution

The fourth proportional to 1,165.93, 1,609.30 and 793.53 is: 1,095.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.93 : 1,609.30 = 793.53 : x
  2. Step 2: Convert to fraction form
    1,165.93/1,609.30 = 793.53/x
  3. Step 3: Cross multiply
    1,165.93x = 1,609.30 × 793.53
  4. Step 4: Simplify right side
    1,165.93x = 1,277,028.82
  5. Step 5: Solve for x
    x = 1,277,028.82/1,165.93
  6. Step 6: Final answer
    x = 1,095.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.