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Finding the Third Proportional to 5,237.79 and 10,828.69

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Solution

The third proportional to 5,237.79 and 10,828.69 is: 22,387.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.79 : 10,828.69 = 10,828.69 : x
  2. Step 2: Convert to fraction form
    5,237.79/10,828.69 = 10,828.69/x
  3. Step 3: Cross multiply
    5,237.79x = 10,828.69 × 10,828.69
  4. Step 4: Simplify right side
    5,237.79x = 117,260,472.97
  5. Step 5: Solve for x
    x = 117,260,472.97/5,237.79
  6. Step 6: Final answer
    x = 22,387.40

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.