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Finding the Fourth Proportional to 61,768.92, 92,656.62 and 19,653.60

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Solution

The fourth proportional to 61,768.92, 92,656.62 and 19,653.60 is: 29,481.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,768.92 : 92,656.62 = 19,653.60 : x
  2. Step 2: Convert to fraction form
    61,768.92/92,656.62 = 19,653.60/x
  3. Step 3: Cross multiply
    61,768.92x = 92,656.62 × 19,653.60
  4. Step 4: Simplify right side
    61,768.92x = 1,821,036,146.83
  5. Step 5: Solve for x
    x = 1,821,036,146.83/61,768.92
  6. Step 6: Final answer
    x = 29,481.43

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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.