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Finding the Third Proportional to 15,700 and 33,888

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Solution

The third proportional to 15,700 and 33,888 is: 73,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700 : 33,888 = 33,888 : x
  2. Step 2: Convert to fraction form
    15,700/33,888 = 33,888/x
  3. Step 3: Cross multiply
    15,700x = 33,888 × 33,888
  4. Step 4: Simplify right side
    15,700x = 1,148,396,544
  5. Step 5: Solve for x
    x = 1,148,396,544/15,700
  6. Step 6: Final answer
    x = 73,146.28

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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.