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Finding the Third Proportional to 36,420 and 57,907.50

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Solution

The third proportional to 36,420 and 57,907.50 is: 92,072.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420 : 57,907.50 = 57,907.50 : x
  2. Step 2: Convert to fraction form
    36,420/57,907.50 = 57,907.50/x
  3. Step 3: Cross multiply
    36,420x = 57,907.50 × 57,907.50
  4. Step 4: Simplify right side
    36,420x = 3,353,278,556.25
  5. Step 5: Solve for x
    x = 3,353,278,556.25/36,420
  6. Step 6: Final answer
    x = 92,072.45

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.