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Finding the Fourth Proportional to 58,443.84, 87,644.22 and 20,993.85

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Solution

The fourth proportional to 58,443.84, 87,644.22 and 20,993.85 is: 31,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,443.84 : 87,644.22 = 20,993.85 : x
  2. Step 2: Convert to fraction form
    58,443.84/87,644.22 = 20,993.85/x
  3. Step 3: Cross multiply
    58,443.84x = 87,644.22 × 20,993.85
  4. Step 4: Simplify right side
    58,443.84x = 1,839,989,608.05
  5. Step 5: Solve for x
    x = 1,839,989,608.05/58,443.84
  6. Step 6: Final answer
    x = 31,483.04

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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.