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Finding the Third Proportional to 797.50 and 1,712

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Solution

The third proportional to 797.50 and 1,712 is: 3,675.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    797.50 : 1,712 = 1,712 : x
  2. Step 2: Convert to fraction form
    797.50/1,712 = 1,712/x
  3. Step 3: Cross multiply
    797.50x = 1,712 × 1,712
  4. Step 4: Simplify right side
    797.50x = 2,930,944
  5. Step 5: Solve for x
    x = 2,930,944/797.50
  6. Step 6: Final answer
    x = 3,675.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.