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Finding the Third Proportional to 15,896 and 34,970

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Solution

The third proportional to 15,896 and 34,970 is: 76,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,896 : 34,970 = 34,970 : x
  2. Step 2: Convert to fraction form
    15,896/34,970 = 34,970/x
  3. Step 3: Cross multiply
    15,896x = 34,970 × 34,970
  4. Step 4: Simplify right side
    15,896x = 1,222,900,900
  5. Step 5: Solve for x
    x = 1,222,900,900/15,896
  6. Step 6: Final answer
    x = 76,931.36

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.