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Finding the Third Proportional to 3,985.75 and 5,053.75

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Solution

The third proportional to 3,985.75 and 5,053.75 is: 6,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.75 : 5,053.75 = 5,053.75 : x
  2. Step 2: Convert to fraction form
    3,985.75/5,053.75 = 5,053.75/x
  3. Step 3: Cross multiply
    3,985.75x = 5,053.75 × 5,053.75
  4. Step 4: Simplify right side
    3,985.75x = 25,540,389.06
  5. Step 5: Solve for x
    x = 25,540,389.06/3,985.75
  6. Step 6: Final answer
    x = 6,407.93

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.