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Finding the Fourth Proportional to 61,249.68, 91,883.16 and 21,795.12

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Solution

The fourth proportional to 61,249.68, 91,883.16 and 21,795.12 is: 32,695.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,249.68 : 91,883.16 = 21,795.12 : x
  2. Step 2: Convert to fraction form
    61,249.68/91,883.16 = 21,795.12/x
  3. Step 3: Cross multiply
    61,249.68x = 91,883.16 × 21,795.12
  4. Step 4: Simplify right side
    61,249.68x = 2,002,604,498.18
  5. Step 5: Solve for x
    x = 2,002,604,498.18/61,249.68
  6. Step 6: Final answer
    x = 32,695.75

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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.