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Finding the Fourth Proportional to 65,779.74, 98,675.84 and 18,394.82

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Solution

The fourth proportional to 65,779.74, 98,675.84 and 18,394.82 is: 27,593.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,779.74 : 98,675.84 = 18,394.82 : x
  2. Step 2: Convert to fraction form
    65,779.74/98,675.84 = 18,394.82/x
  3. Step 3: Cross multiply
    65,779.74x = 98,675.84 × 18,394.82
  4. Step 4: Simplify right side
    65,779.74x = 1,815,124,315.15
  5. Step 5: Solve for x
    x = 1,815,124,315.15/65,779.74
  6. Step 6: Final answer
    x = 27,593.97

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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.