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Finding the Fourth Proportional to 58,606.29, 87,891.03 and 21,161.43

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Solution

The fourth proportional to 58,606.29, 87,891.03 and 21,161.43 is: 31,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,606.29 : 87,891.03 = 21,161.43 : x
  2. Step 2: Convert to fraction form
    58,606.29/87,891.03 = 21,161.43/x
  3. Step 3: Cross multiply
    58,606.29x = 87,891.03 × 21,161.43
  4. Step 4: Simplify right side
    58,606.29x = 1,859,899,878.97
  5. Step 5: Solve for x
    x = 1,859,899,878.97/58,606.29
  6. Step 6: Final answer
    x = 31,735.50

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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.