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Finding the Third Proportional to 32,184 and 69,420

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Solution

The third proportional to 32,184 and 69,420 is: 149,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,184 : 69,420 = 69,420 : x
  2. Step 2: Convert to fraction form
    32,184/69,420 = 69,420/x
  3. Step 3: Cross multiply
    32,184x = 69,420 × 69,420
  4. Step 4: Simplify right side
    32,184x = 4,819,136,400
  5. Step 5: Solve for x
    x = 4,819,136,400/32,184
  6. Step 6: Final answer
    x = 149,737.02

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.