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Finding the Third Proportional to 4,656 and 9,072

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Solution

The third proportional to 4,656 and 9,072 is: 17,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,656 : 9,072 = 9,072 : x
  2. Step 2: Convert to fraction form
    4,656/9,072 = 9,072/x
  3. Step 3: Cross multiply
    4,656x = 9,072 × 9,072
  4. Step 4: Simplify right side
    4,656x = 82,301,184
  5. Step 5: Solve for x
    x = 82,301,184/4,656
  6. Step 6: Final answer
    x = 17,676.37

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.