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Finding the Fourth Proportional to 61,843.17, 92,779.86 and 19,723.25

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Solution

The fourth proportional to 61,843.17, 92,779.86 and 19,723.25 is: 29,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,843.17 : 92,779.86 = 19,723.25 : x
  2. Step 2: Convert to fraction form
    61,843.17/92,779.86 = 19,723.25/x
  3. Step 3: Cross multiply
    61,843.17x = 92,779.86 × 19,723.25
  4. Step 4: Simplify right side
    61,843.17x = 1,829,920,679.66
  5. Step 5: Solve for x
    x = 1,829,920,679.66/61,843.17
  6. Step 6: Final answer
    x = 29,589.70

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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.