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Finding the Third Proportional to 788.63 and 1,712.25

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Solution

The third proportional to 788.63 and 1,712.25 is: 3,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    788.63 : 1,712.25 = 1,712.25 : x
  2. Step 2: Convert to fraction form
    788.63/1,712.25 = 1,712.25/x
  3. Step 3: Cross multiply
    788.63x = 1,712.25 × 1,712.25
  4. Step 4: Simplify right side
    788.63x = 2,931,800.06
  5. Step 5: Solve for x
    x = 2,931,800.06/788.63
  6. Step 6: Final answer
    x = 3,717.61

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.