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Finding the Third Proportional to 15,009.75 and 20,043

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Solution

The third proportional to 15,009.75 and 20,043 is: 26,764.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.75 : 20,043 = 20,043 : x
  2. Step 2: Convert to fraction form
    15,009.75/20,043 = 20,043/x
  3. Step 3: Cross multiply
    15,009.75x = 20,043 × 20,043
  4. Step 4: Simplify right side
    15,009.75x = 401,721,849
  5. Step 5: Solve for x
    x = 401,721,849/15,009.75
  6. Step 6: Final answer
    x = 26,764.06

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.