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Finding the Third Proportional to 9,668.75 and 21,205.50

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Solution

The third proportional to 9,668.75 and 21,205.50 is: 46,507.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,668.75 : 21,205.50 = 21,205.50 : x
  2. Step 2: Convert to fraction form
    9,668.75/21,205.50 = 21,205.50/x
  3. Step 3: Cross multiply
    9,668.75x = 21,205.50 × 21,205.50
  4. Step 4: Simplify right side
    9,668.75x = 449,673,230.25
  5. Step 5: Solve for x
    x = 449,673,230.25/9,668.75
  6. Step 6: Final answer
    x = 46,507.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.