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Finding the Third Proportional to 788.91 and 1,706.06

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Solution

The third proportional to 788.91 and 1,706.06 is: 3,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    788.91 : 1,706.06 = 1,706.06 : x
  2. Step 2: Convert to fraction form
    788.91/1,706.06 = 1,706.06/x
  3. Step 3: Cross multiply
    788.91x = 1,706.06 × 1,706.06
  4. Step 4: Simplify right side
    788.91x = 2,910,649.25
  5. Step 5: Solve for x
    x = 2,910,649.25/788.91
  6. Step 6: Final answer
    x = 3,689.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.