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Finding the Third Proportional to 11,556 and 21,633.75

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Solution

The third proportional to 11,556 and 21,633.75 is: 40,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,556 : 21,633.75 = 21,633.75 : x
  2. Step 2: Convert to fraction form
    11,556/21,633.75 = 21,633.75/x
  3. Step 3: Cross multiply
    11,556x = 21,633.75 × 21,633.75
  4. Step 4: Simplify right side
    11,556x = 468,019,139.06
  5. Step 5: Solve for x
    x = 468,019,139.06/11,556
  6. Step 6: Final answer
    x = 40,500.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.