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Finding the Third Proportional to 5,590 and 11,038

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Solution

The third proportional to 5,590 and 11,038 is: 21,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590 : 11,038 = 11,038 : x
  2. Step 2: Convert to fraction form
    5,590/11,038 = 11,038/x
  3. Step 3: Cross multiply
    5,590x = 11,038 × 11,038
  4. Step 4: Simplify right side
    5,590x = 121,837,444
  5. Step 5: Solve for x
    x = 121,837,444/5,590
  6. Step 6: Final answer
    x = 21,795.61

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.