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Finding the Third Proportional to 707.06 and 1,122.19

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Solution

The third proportional to 707.06 and 1,122.19 is: 1,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.06 : 1,122.19 = 1,122.19 : x
  2. Step 2: Convert to fraction form
    707.06/1,122.19 = 1,122.19/x
  3. Step 3: Cross multiply
    707.06x = 1,122.19 × 1,122.19
  4. Step 4: Simplify right side
    707.06x = 1,259,304.79
  5. Step 5: Solve for x
    x = 1,259,304.79/707.06
  6. Step 6: Final answer
    x = 1,781.04

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.