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Finding the Fourth Proportional to 51,563.99, 77,370.87 and 28,189.82

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Solution

The fourth proportional to 51,563.99, 77,370.87 and 28,189.82 is: 42,298.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,563.99 : 77,370.87 = 28,189.82 : x
  2. Step 2: Convert to fraction form
    51,563.99/77,370.87 = 28,189.82/x
  3. Step 3: Cross multiply
    51,563.99x = 77,370.87 × 28,189.82
  4. Step 4: Simplify right side
    51,563.99x = 2,181,070,898.54
  5. Step 5: Solve for x
    x = 2,181,070,898.54/51,563.99
  6. Step 6: Final answer
    x = 42,298.33

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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.