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Finding the Third Proportional to 16,770 and 19,146

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Solution

The third proportional to 16,770 and 19,146 is: 21,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,770 : 19,146 = 19,146 : x
  2. Step 2: Convert to fraction form
    16,770/19,146 = 19,146/x
  3. Step 3: Cross multiply
    16,770x = 19,146 × 19,146
  4. Step 4: Simplify right side
    16,770x = 366,569,316
  5. Step 5: Solve for x
    x = 366,569,316/16,770
  6. Step 6: Final answer
    x = 21,858.64

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.