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Finding the Third Proportional to 29,739.38 and 64,378.13

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Solution

The third proportional to 29,739.38 and 64,378.13 is: 139,362.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,739.38 : 64,378.13 = 64,378.13 : x
  2. Step 2: Convert to fraction form
    29,739.38/64,378.13 = 64,378.13/x
  3. Step 3: Cross multiply
    29,739.38x = 64,378.13 × 64,378.13
  4. Step 4: Simplify right side
    29,739.38x = 4,144,542,978.52
  5. Step 5: Solve for x
    x = 4,144,542,978.52/29,739.38
  6. Step 6: Final answer
    x = 139,362.14

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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.