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Finding the Fourth Proportional to 61,589.82, 92,385.94 and 28,300.80

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Solution

The fourth proportional to 61,589.82, 92,385.94 and 28,300.80 is: 42,451.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,589.82 : 92,385.94 = 28,300.80 : x
  2. Step 2: Convert to fraction form
    61,589.82/92,385.94 = 28,300.80/x
  3. Step 3: Cross multiply
    61,589.82x = 92,385.94 × 28,300.80
  4. Step 4: Simplify right side
    61,589.82x = 2,614,596,010.75
  5. Step 5: Solve for x
    x = 2,614,596,010.75/61,589.82
  6. Step 6: Final answer
    x = 42,451.76

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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.