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Finding the Third Proportional to 5,091.75 and 7,009.88

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Solution

The third proportional to 5,091.75 and 7,009.88 is: 9,650.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.75 : 7,009.88 = 7,009.88 : x
  2. Step 2: Convert to fraction form
    5,091.75/7,009.88 = 7,009.88/x
  3. Step 3: Cross multiply
    5,091.75x = 7,009.88 × 7,009.88
  4. Step 4: Simplify right side
    5,091.75x = 49,138,347.52
  5. Step 5: Solve for x
    x = 49,138,347.52/5,091.75
  6. Step 6: Final answer
    x = 9,650.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.