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Finding the Fourth Proportional to 61,249.80, 91,853.10 and 27,985.80

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Solution

The fourth proportional to 61,249.80, 91,853.10 and 27,985.80 is: 41,968.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,249.80 : 91,853.10 = 27,985.80 : x
  2. Step 2: Convert to fraction form
    61,249.80/91,853.10 = 27,985.80/x
  3. Step 3: Cross multiply
    61,249.80x = 91,853.10 × 27,985.80
  4. Step 4: Simplify right side
    61,249.80x = 2,570,582,485.98
  5. Step 5: Solve for x
    x = 2,570,582,485.98/61,249.80
  6. Step 6: Final answer
    x = 41,968.83

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1.5x scale

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.