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Finding the Third Proportional to 25,515 and 39,163.50

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Solution

The third proportional to 25,515 and 39,163.50 is: 60,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515 : 39,163.50 = 39,163.50 : x
  2. Step 2: Convert to fraction form
    25,515/39,163.50 = 39,163.50/x
  3. Step 3: Cross multiply
    25,515x = 39,163.50 × 39,163.50
  4. Step 4: Simplify right side
    25,515x = 1,533,779,732.25
  5. Step 5: Solve for x
    x = 1,533,779,732.25/25,515
  6. Step 6: Final answer
    x = 60,112.86

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.