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Finding the Fourth Proportional to 61,101.64, 91,575.91 and 33,020.56

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Solution

The fourth proportional to 61,101.64, 91,575.91 and 33,020.56 is: 49,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,101.64 : 91,575.91 = 33,020.56 : x
  2. Step 2: Convert to fraction form
    61,101.64/91,575.91 = 33,020.56/x
  3. Step 3: Cross multiply
    61,101.64x = 91,575.91 × 33,020.56
  4. Step 4: Simplify right side
    61,101.64x = 3,023,887,830.71
  5. Step 5: Solve for x
    x = 3,023,887,830.71/61,101.64
  6. Step 6: Final answer
    x = 49,489.47

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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.