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Finding the Third Proportional to 4,509.50 and 9,641.50

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Solution

The third proportional to 4,509.50 and 9,641.50 is: 20,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.50 : 9,641.50 = 9,641.50 : x
  2. Step 2: Convert to fraction form
    4,509.50/9,641.50 = 9,641.50/x
  3. Step 3: Cross multiply
    4,509.50x = 9,641.50 × 9,641.50
  4. Step 4: Simplify right side
    4,509.50x = 92,958,522.25
  5. Step 5: Solve for x
    x = 92,958,522.25/4,509.50
  6. Step 6: Final answer
    x = 20,613.93

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.