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Finding the Third Proportional to 7,172 and 14,886

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Solution

The third proportional to 7,172 and 14,886 is: 30,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172 : 14,886 = 14,886 : x
  2. Step 2: Convert to fraction form
    7,172/14,886 = 14,886/x
  3. Step 3: Cross multiply
    7,172x = 14,886 × 14,886
  4. Step 4: Simplify right side
    7,172x = 221,592,996
  5. Step 5: Solve for x
    x = 221,592,996/7,172
  6. Step 6: Final answer
    x = 30,896.96

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.