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Finding the Third Proportional to 21,890.25 and 34,668

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Solution

The third proportional to 21,890.25 and 34,668 is: 54,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.25 : 34,668 = 34,668 : x
  2. Step 2: Convert to fraction form
    21,890.25/34,668 = 34,668/x
  3. Step 3: Cross multiply
    21,890.25x = 34,668 × 34,668
  4. Step 4: Simplify right side
    21,890.25x = 1,201,870,224
  5. Step 5: Solve for x
    x = 1,201,870,224/21,890.25
  6. Step 6: Final answer
    x = 54,904.36

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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.