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Finding the Fourth Proportional to 57,488.52, 86,232.84 and 18,048.72

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Solution

The fourth proportional to 57,488.52, 86,232.84 and 18,048.72 is: 27,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,488.52 : 86,232.84 = 18,048.72 : x
  2. Step 2: Convert to fraction form
    57,488.52/86,232.84 = 18,048.72/x
  3. Step 3: Cross multiply
    57,488.52x = 86,232.84 × 18,048.72
  4. Step 4: Simplify right side
    57,488.52x = 1,556,392,383.96
  5. Step 5: Solve for x
    x = 1,556,392,383.96/57,488.52
  6. Step 6: Final answer
    x = 27,073.10

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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.