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Finding the Third Proportional to 64,620 and 94,800

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Solution

The third proportional to 64,620 and 94,800 is: 139,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,620 : 94,800 = 94,800 : x
  2. Step 2: Convert to fraction form
    64,620/94,800 = 94,800/x
  3. Step 3: Cross multiply
    64,620x = 94,800 × 94,800
  4. Step 4: Simplify right side
    64,620x = 8,987,040,000
  5. Step 5: Solve for x
    x = 8,987,040,000/64,620
  6. Step 6: Final answer
    x = 139,075.21

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.