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Finding the Fourth Proportional to 1,175.96, 1,610.86 and 1,163

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Solution

The fourth proportional to 1,175.96, 1,610.86 and 1,163 is: 1,593.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.96 : 1,610.86 = 1,163 : x
  2. Step 2: Convert to fraction form
    1,175.96/1,610.86 = 1,163/x
  3. Step 3: Cross multiply
    1,175.96x = 1,610.86 × 1,163
  4. Step 4: Simplify right side
    1,175.96x = 1,873,430.18
  5. Step 5: Solve for x
    x = 1,873,430.18/1,175.96
  6. Step 6: Final answer
    x = 1,593.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.