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Finding the Third Proportional to 4,913.75 and 10,283

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Solution

The third proportional to 4,913.75 and 10,283 is: 21,519.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,913.75 : 10,283 = 10,283 : x
  2. Step 2: Convert to fraction form
    4,913.75/10,283 = 10,283/x
  3. Step 3: Cross multiply
    4,913.75x = 10,283 × 10,283
  4. Step 4: Simplify right side
    4,913.75x = 105,740,089
  5. Step 5: Solve for x
    x = 105,740,089/4,913.75
  6. Step 6: Final answer
    x = 21,519.22

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.