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Finding the Fourth Proportional to 61,697.64, 92,546.43 and 20,144.64

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Solution

The fourth proportional to 61,697.64, 92,546.43 and 20,144.64 is: 30,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,697.64 : 92,546.43 = 20,144.64 : x
  2. Step 2: Convert to fraction form
    61,697.64/92,546.43 = 20,144.64/x
  3. Step 3: Cross multiply
    61,697.64x = 92,546.43 × 20,144.64
  4. Step 4: Simplify right side
    61,697.64x = 1,864,314,515.64
  5. Step 5: Solve for x
    x = 1,864,314,515.64/61,697.64
  6. Step 6: Final answer
    x = 30,216.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.