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Finding the Third Proportional to 29,883.75 and 64,378.13

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Solution

The third proportional to 29,883.75 and 64,378.13 is: 138,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,883.75 : 64,378.13 = 64,378.13 : x
  2. Step 2: Convert to fraction form
    29,883.75/64,378.13 = 64,378.13/x
  3. Step 3: Cross multiply
    29,883.75x = 64,378.13 × 64,378.13
  4. Step 4: Simplify right side
    29,883.75x = 4,144,542,978.52
  5. Step 5: Solve for x
    x = 4,144,542,978.52/29,883.75
  6. Step 6: Final answer
    x = 138,688.85

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.