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Finding the Third Proportional to 11,886.75 and 15,633

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Solution

The third proportional to 11,886.75 and 15,633 is: 20,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.75 : 15,633 = 15,633 : x
  2. Step 2: Convert to fraction form
    11,886.75/15,633 = 15,633/x
  3. Step 3: Cross multiply
    11,886.75x = 15,633 × 15,633
  4. Step 4: Simplify right side
    11,886.75x = 244,390,689
  5. Step 5: Solve for x
    x = 244,390,689/11,886.75
  6. Step 6: Final answer
    x = 20,559.93

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.