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Finding the Third Proportional to 13,385 and 28,930

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Solution

The third proportional to 13,385 and 28,930 is: 62,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385 : 28,930 = 28,930 : x
  2. Step 2: Convert to fraction form
    13,385/28,930 = 28,930/x
  3. Step 3: Cross multiply
    13,385x = 28,930 × 28,930
  4. Step 4: Simplify right side
    13,385x = 836,944,900
  5. Step 5: Solve for x
    x = 836,944,900/13,385
  6. Step 6: Final answer
    x = 62,528.57

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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.