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Finding the Third Proportional to 55,562 and 79,400

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Solution

The third proportional to 55,562 and 79,400 is: 113,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,562 : 79,400 = 79,400 : x
  2. Step 2: Convert to fraction form
    55,562/79,400 = 79,400/x
  3. Step 3: Cross multiply
    55,562x = 79,400 × 79,400
  4. Step 4: Simplify right side
    55,562x = 6,304,360,000
  5. Step 5: Solve for x
    x = 6,304,360,000/55,562
  6. Step 6: Final answer
    x = 113,465.32

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.