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Finding the Third Proportional to 714.50 and 1,277

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Solution

The third proportional to 714.50 and 1,277 is: 2,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.50 : 1,277 = 1,277 : x
  2. Step 2: Convert to fraction form
    714.50/1,277 = 1,277/x
  3. Step 3: Cross multiply
    714.50x = 1,277 × 1,277
  4. Step 4: Simplify right side
    714.50x = 1,630,729
  5. Step 5: Solve for x
    x = 1,630,729/714.50
  6. Step 6: Final answer
    x = 2,282.34

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.