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Finding the Third Proportional to 63,080 and 74,600

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Solution

The third proportional to 63,080 and 74,600 is: 88,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,080 : 74,600 = 74,600 : x
  2. Step 2: Convert to fraction form
    63,080/74,600 = 74,600/x
  3. Step 3: Cross multiply
    63,080x = 74,600 × 74,600
  4. Step 4: Simplify right side
    63,080x = 5,565,160,000
  5. Step 5: Solve for x
    x = 5,565,160,000/63,080
  6. Step 6: Final answer
    x = 88,223.84

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.