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Finding the Fourth Proportional to 58,578.74, 87,849.93 and 21,133.94

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Solution

The fourth proportional to 58,578.74, 87,849.93 and 21,133.94 is: 31,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,578.74 : 87,849.93 = 21,133.94 : x
  2. Step 2: Convert to fraction form
    58,578.74/87,849.93 = 21,133.94/x
  3. Step 3: Cross multiply
    58,578.74x = 87,849.93 × 21,133.94
  4. Step 4: Simplify right side
    58,578.74x = 1,856,615,149.62
  5. Step 5: Solve for x
    x = 1,856,615,149.62/58,578.74
  6. Step 6: Final answer
    x = 31,694.35

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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.