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Finding the Fourth Proportional to 61,062.65, 91,607.05 and 18,941.82

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Solution

The fourth proportional to 61,062.65, 91,607.05 and 18,941.82 is: 28,416.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,062.65 : 91,607.05 = 18,941.82 : x
  2. Step 2: Convert to fraction form
    61,062.65/91,607.05 = 18,941.82/x
  3. Step 3: Cross multiply
    61,062.65x = 91,607.05 × 18,941.82
  4. Step 4: Simplify right side
    61,062.65x = 1,735,204,251.83
  5. Step 5: Solve for x
    x = 1,735,204,251.83/61,062.65
  6. Step 6: Final answer
    x = 28,416.79

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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.