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Finding the Third Proportional to 20,643.19 and 36,888.75

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Solution

The third proportional to 20,643.19 and 36,888.75 is: 65,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,643.19 : 36,888.75 = 36,888.75 : x
  2. Step 2: Convert to fraction form
    20,643.19/36,888.75 = 36,888.75/x
  3. Step 3: Cross multiply
    20,643.19x = 36,888.75 × 36,888.75
  4. Step 4: Simplify right side
    20,643.19x = 1,360,779,876.56
  5. Step 5: Solve for x
    x = 1,360,779,876.56/20,643.19
  6. Step 6: Final answer
    x = 65,919.08

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.