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Finding the Fourth Proportional to 61,647.62, 85,068.81 and 37,771.02

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Solution

The fourth proportional to 61,647.62, 85,068.81 and 37,771.02 is: 52,121.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,647.62 : 85,068.81 = 37,771.02 : x
  2. Step 2: Convert to fraction form
    61,647.62/85,068.81 = 37,771.02/x
  3. Step 3: Cross multiply
    61,647.62x = 85,068.81 × 37,771.02
  4. Step 4: Simplify right side
    61,647.62x = 3,213,135,723.89
  5. Step 5: Solve for x
    x = 3,213,135,723.89/61,647.62
  6. Step 6: Final answer
    x = 52,121.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.