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Finding the Third Proportional to 28,222 and 60,331

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Solution

The third proportional to 28,222 and 60,331 is: 128,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222 : 60,331 = 60,331 : x
  2. Step 2: Convert to fraction form
    28,222/60,331 = 60,331/x
  3. Step 3: Cross multiply
    28,222x = 60,331 × 60,331
  4. Step 4: Simplify right side
    28,222x = 3,639,829,561
  5. Step 5: Solve for x
    x = 3,639,829,561/28,222
  6. Step 6: Final answer
    x = 128,971.35

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.