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Finding the Third Proportional to 4,024.50 and 5,415.75

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Solution

The third proportional to 4,024.50 and 5,415.75 is: 7,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,024.50 : 5,415.75 = 5,415.75 : x
  2. Step 2: Convert to fraction form
    4,024.50/5,415.75 = 5,415.75/x
  3. Step 3: Cross multiply
    4,024.50x = 5,415.75 × 5,415.75
  4. Step 4: Simplify right side
    4,024.50x = 29,330,348.06
  5. Step 5: Solve for x
    x = 29,330,348.06/4,024.50
  6. Step 6: Final answer
    x = 7,287.95

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.