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Finding the Third Proportional to 760.13 and 998.25

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Solution

The third proportional to 760.13 and 998.25 is: 1,310.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.13 : 998.25 = 998.25 : x
  2. Step 2: Convert to fraction form
    760.13/998.25 = 998.25/x
  3. Step 3: Cross multiply
    760.13x = 998.25 × 998.25
  4. Step 4: Simplify right side
    760.13x = 996,503.06
  5. Step 5: Solve for x
    x = 996,503.06/760.13
  6. Step 6: Final answer
    x = 1,310.97

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.