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Finding the Fourth Proportional to 58,292.58, 87,408.72 and 18,844.56

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Solution

The fourth proportional to 58,292.58, 87,408.72 and 18,844.56 is: 28,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,292.58 : 87,408.72 = 18,844.56 : x
  2. Step 2: Convert to fraction form
    58,292.58/87,408.72 = 18,844.56/x
  3. Step 3: Cross multiply
    58,292.58x = 87,408.72 × 18,844.56
  4. Step 4: Simplify right side
    58,292.58x = 1,647,178,868.56
  5. Step 5: Solve for x
    x = 1,647,178,868.56/58,292.58
  6. Step 6: Final answer
    x = 28,257.09

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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.