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Finding the Third Proportional to 4,902 and 7,008.75

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Solution

The third proportional to 4,902 and 7,008.75 is: 10,020.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902 : 7,008.75 = 7,008.75 : x
  2. Step 2: Convert to fraction form
    4,902/7,008.75 = 7,008.75/x
  3. Step 3: Cross multiply
    4,902x = 7,008.75 × 7,008.75
  4. Step 4: Simplify right side
    4,902x = 49,122,576.56
  5. Step 5: Solve for x
    x = 49,122,576.56/4,902
  6. Step 6: Final answer
    x = 10,020.93

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.