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Finding the Third Proportional to 465.75 and 761.06

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Solution

The third proportional to 465.75 and 761.06 is: 1,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    465.75 : 761.06 = 761.06 : x
  2. Step 2: Convert to fraction form
    465.75/761.06 = 761.06/x
  3. Step 3: Cross multiply
    465.75x = 761.06 × 761.06
  4. Step 4: Simplify right side
    465.75x = 579,216.13
  5. Step 5: Solve for x
    x = 579,216.13/465.75
  6. Step 6: Final answer
    x = 1,243.62

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.