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Finding the Third Proportional to 29,275 and 64,240

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Solution

The third proportional to 29,275 and 64,240 is: 140,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,275 : 64,240 = 64,240 : x
  2. Step 2: Convert to fraction form
    29,275/64,240 = 64,240/x
  3. Step 3: Cross multiply
    29,275x = 64,240 × 64,240
  4. Step 4: Simplify right side
    29,275x = 4,126,777,600
  5. Step 5: Solve for x
    x = 4,126,777,600/29,275
  6. Step 6: Final answer
    x = 140,965.93

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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.