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Finding the Third Proportional to 21,889 and 48,031.75

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Solution

The third proportional to 21,889 and 48,031.75 is: 105,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,889 : 48,031.75 = 48,031.75 : x
  2. Step 2: Convert to fraction form
    21,889/48,031.75 = 48,031.75/x
  3. Step 3: Cross multiply
    21,889x = 48,031.75 × 48,031.75
  4. Step 4: Simplify right side
    21,889x = 2,307,049,008.06
  5. Step 5: Solve for x
    x = 2,307,049,008.06/21,889
  6. Step 6: Final answer
    x = 105,397.64

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.