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Finding the Fourth Proportional to 58,266, 87,390.36 and 18,817.92

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Solution

The fourth proportional to 58,266, 87,390.36 and 18,817.92 is: 28,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,266 : 87,390.36 = 18,817.92 : x
  2. Step 2: Convert to fraction form
    58,266/87,390.36 = 18,817.92/x
  3. Step 3: Cross multiply
    58,266x = 87,390.36 × 18,817.92
  4. Step 4: Simplify right side
    58,266x = 1,644,504,803.25
  5. Step 5: Solve for x
    x = 1,644,504,803.25/58,266
  6. Step 6: Final answer
    x = 28,224.09

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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.