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Finding the Third Proportional to 38,532 and 84,120

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Solution

The third proportional to 38,532 and 84,120 is: 183,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,532 : 84,120 = 84,120 : x
  2. Step 2: Convert to fraction form
    38,532/84,120 = 84,120/x
  3. Step 3: Cross multiply
    38,532x = 84,120 × 84,120
  4. Step 4: Simplify right side
    38,532x = 7,076,174,400
  5. Step 5: Solve for x
    x = 7,076,174,400/38,532
  6. Step 6: Final answer
    x = 183,644.10

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.