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Finding the Third Proportional to 38,985.50 and 84,192.50

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Solution

The third proportional to 38,985.50 and 84,192.50 is: 181,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,985.50 : 84,192.50 = 84,192.50 : x
  2. Step 2: Convert to fraction form
    38,985.50/84,192.50 = 84,192.50/x
  3. Step 3: Cross multiply
    38,985.50x = 84,192.50 × 84,192.50
  4. Step 4: Simplify right side
    38,985.50x = 7,088,377,056.25
  5. Step 5: Solve for x
    x = 7,088,377,056.25/38,985.50
  6. Step 6: Final answer
    x = 181,820.86

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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.