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Finding the Fourth Proportional to 53,181.99, 73,390.86 and 28,982.94

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Solution

The fourth proportional to 53,181.99, 73,390.86 and 28,982.94 is: 39,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,181.99 : 73,390.86 = 28,982.94 : x
  2. Step 2: Convert to fraction form
    53,181.99/73,390.86 = 28,982.94/x
  3. Step 3: Cross multiply
    53,181.99x = 73,390.86 × 28,982.94
  4. Step 4: Simplify right side
    53,181.99x = 2,127,082,891.93
  5. Step 5: Solve for x
    x = 2,127,082,891.93/53,181.99
  6. Step 6: Final answer
    x = 39,996.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.