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Finding the Third Proportional to 38,485.13 and 84,321

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Solution

The third proportional to 38,485.13 and 84,321 is: 184,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,485.13 : 84,321 = 84,321 : x
  2. Step 2: Convert to fraction form
    38,485.13/84,321 = 84,321/x
  3. Step 3: Cross multiply
    38,485.13x = 84,321 × 84,321
  4. Step 4: Simplify right side
    38,485.13x = 7,110,031,041
  5. Step 5: Solve for x
    x = 7,110,031,041/38,485.13
  6. Step 6: Final answer
    x = 184,747.51

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.