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Finding the Third Proportional to 29,280 and 64,028

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Solution

The third proportional to 29,280 and 64,028 is: 140,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280 : 64,028 = 64,028 : x
  2. Step 2: Convert to fraction form
    29,280/64,028 = 64,028/x
  3. Step 3: Cross multiply
    29,280x = 64,028 × 64,028
  4. Step 4: Simplify right side
    29,280x = 4,099,584,784
  5. Step 5: Solve for x
    x = 4,099,584,784/29,280
  6. Step 6: Final answer
    x = 140,013.14

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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.