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Finding the Third Proportional to 52,539 and 78,623

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Solution

The third proportional to 52,539 and 78,623 is: 117,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,539 : 78,623 = 78,623 : x
  2. Step 2: Convert to fraction form
    52,539/78,623 = 78,623/x
  3. Step 3: Cross multiply
    52,539x = 78,623 × 78,623
  4. Step 4: Simplify right side
    52,539x = 6,181,576,129
  5. Step 5: Solve for x
    x = 6,181,576,129/52,539
  6. Step 6: Final answer
    x = 117,656.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.