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Finding the Fourth Proportional to 58,628.91, 87,942.13 and 14,255.89

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Solution

The fourth proportional to 58,628.91, 87,942.13 and 14,255.89 is: 21,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,628.91 : 87,942.13 = 14,255.89 : x
  2. Step 2: Convert to fraction form
    58,628.91/87,942.13 = 14,255.89/x
  3. Step 3: Cross multiply
    58,628.91x = 87,942.13 × 14,255.89
  4. Step 4: Simplify right side
    58,628.91x = 1,253,693,331.65
  5. Step 5: Solve for x
    x = 1,253,693,331.65/58,628.91
  6. Step 6: Final answer
    x = 21,383.53

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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.