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Finding the Third Proportional to 21,196 and 33,557

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Solution

The third proportional to 21,196 and 33,557 is: 53,126.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196 : 33,557 = 33,557 : x
  2. Step 2: Convert to fraction form
    21,196/33,557 = 33,557/x
  3. Step 3: Cross multiply
    21,196x = 33,557 × 33,557
  4. Step 4: Simplify right side
    21,196x = 1,126,072,249
  5. Step 5: Solve for x
    x = 1,126,072,249/21,196
  6. Step 6: Final answer
    x = 53,126.64

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.