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Finding the Fourth Proportional to 57,776.49, 86,664.51 and 18,336.68

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Solution

The fourth proportional to 57,776.49, 86,664.51 and 18,336.68 is: 27,504.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,776.49 : 86,664.51 = 18,336.68 : x
  2. Step 2: Convert to fraction form
    57,776.49/86,664.51 = 18,336.68/x
  3. Step 3: Cross multiply
    57,776.49x = 86,664.51 × 18,336.68
  4. Step 4: Simplify right side
    57,776.49x = 1,589,138,953.90
  5. Step 5: Solve for x
    x = 1,589,138,953.90/57,776.49
  6. Step 6: Final answer
    x = 27,504.94

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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.