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Finding the Fourth Proportional to 61,786.54, 92,707.44 and 28,488.75

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Solution

The fourth proportional to 61,786.54, 92,707.44 and 28,488.75 is: 42,745.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,786.54 : 92,707.44 = 28,488.75 : x
  2. Step 2: Convert to fraction form
    61,786.54/92,707.44 = 28,488.75/x
  3. Step 3: Cross multiply
    61,786.54x = 92,707.44 × 28,488.75
  4. Step 4: Simplify right side
    61,786.54x = 2,641,119,081.30
  5. Step 5: Solve for x
    x = 2,641,119,081.30/61,786.54
  6. Step 6: Final answer
    x = 42,745.86

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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.