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Finding the Third Proportional to 39,576 and 93,420

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Solution

The third proportional to 39,576 and 93,420 is: 220,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,576 : 93,420 = 93,420 : x
  2. Step 2: Convert to fraction form
    39,576/93,420 = 93,420/x
  3. Step 3: Cross multiply
    39,576x = 93,420 × 93,420
  4. Step 4: Simplify right side
    39,576x = 8,727,296,400
  5. Step 5: Solve for x
    x = 8,727,296,400/39,576
  6. Step 6: Final answer
    x = 220,519.92

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.