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Finding the Fourth Proportional to 58,380.75, 87,576.59 and 18,927.27

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Solution

The fourth proportional to 58,380.75, 87,576.59 and 18,927.27 is: 28,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,380.75 : 87,576.59 = 18,927.27 : x
  2. Step 2: Convert to fraction form
    58,380.75/87,576.59 = 18,927.27/x
  3. Step 3: Cross multiply
    58,380.75x = 87,576.59 × 18,927.27
  4. Step 4: Simplify right side
    58,380.75x = 1,657,585,811.93
  5. Step 5: Solve for x
    x = 1,657,585,811.93/58,380.75
  6. Step 6: Final answer
    x = 28,392.68

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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.