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Finding the Third Proportional to 25,220 and 54,860

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Solution

The third proportional to 25,220 and 54,860 is: 119,334.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,220 : 54,860 = 54,860 : x
  2. Step 2: Convert to fraction form
    25,220/54,860 = 54,860/x
  3. Step 3: Cross multiply
    25,220x = 54,860 × 54,860
  4. Step 4: Simplify right side
    25,220x = 3,009,619,600
  5. Step 5: Solve for x
    x = 3,009,619,600/25,220
  6. Step 6: Final answer
    x = 119,334.64

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.