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Finding the Fourth Proportional to 44,779.92, 67,181.12 and 13,191

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Solution

The fourth proportional to 44,779.92, 67,181.12 and 13,191 is: 19,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,779.92 : 67,181.12 = 13,191 : x
  2. Step 2: Convert to fraction form
    44,779.92/67,181.12 = 13,191/x
  3. Step 3: Cross multiply
    44,779.92x = 67,181.12 × 13,191
  4. Step 4: Simplify right side
    44,779.92x = 886,186,153.92
  5. Step 5: Solve for x
    x = 886,186,153.92/44,779.92
  6. Step 6: Final answer
    x = 19,789.81

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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.