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Finding the Fourth Proportional to 57,576.92, 86,357.18 and 18,133.01

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Solution

The fourth proportional to 57,576.92, 86,357.18 and 18,133.01 is: 27,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,576.92 : 86,357.18 = 18,133.01 : x
  2. Step 2: Convert to fraction form
    57,576.92/86,357.18 = 18,133.01/x
  3. Step 3: Cross multiply
    57,576.92x = 86,357.18 × 18,133.01
  4. Step 4: Simplify right side
    57,576.92x = 1,565,915,784.46
  5. Step 5: Solve for x
    x = 1,565,915,784.46/57,576.92
  6. Step 6: Final answer
    x = 27,196.93

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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.