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Finding the Third Proportional to 12,964 and 28,438

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Solution

The third proportional to 12,964 and 28,438 is: 62,381.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964 : 28,438 = 28,438 : x
  2. Step 2: Convert to fraction form
    12,964/28,438 = 28,438/x
  3. Step 3: Cross multiply
    12,964x = 28,438 × 28,438
  4. Step 4: Simplify right side
    12,964x = 808,719,844
  5. Step 5: Solve for x
    x = 808,719,844/12,964
  6. Step 6: Final answer
    x = 62,381.97

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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.