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Finding the Fourth Proportional to 61,796.93, 92,671.36 and 21,262.70

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Solution

The fourth proportional to 61,796.93, 92,671.36 and 21,262.70 is: 31,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,796.93 : 92,671.36 = 21,262.70 : x
  2. Step 2: Convert to fraction form
    61,796.93/92,671.36 = 21,262.70/x
  3. Step 3: Cross multiply
    61,796.93x = 92,671.36 × 21,262.70
  4. Step 4: Simplify right side
    61,796.93x = 1,970,443,504.79
  5. Step 5: Solve for x
    x = 1,970,443,504.79/61,796.93
  6. Step 6: Final answer
    x = 31,885.79

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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.