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Finding the Third Proportional to 7,954.50 and 13,071

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Solution

The third proportional to 7,954.50 and 13,071 is: 21,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.50 : 13,071 = 13,071 : x
  2. Step 2: Convert to fraction form
    7,954.50/13,071 = 13,071/x
  3. Step 3: Cross multiply
    7,954.50x = 13,071 × 13,071
  4. Step 4: Simplify right side
    7,954.50x = 170,851,041
  5. Step 5: Solve for x
    x = 170,851,041/7,954.50
  6. Step 6: Final answer
    x = 21,478.54

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.