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Finding the Fourth Proportional to 62,408.10, 93,612.15 and 55,020.90

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Solution

The fourth proportional to 62,408.10, 93,612.15 and 55,020.90 is: 82,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,408.10 : 93,612.15 = 55,020.90 : x
  2. Step 2: Convert to fraction form
    62,408.10/93,612.15 = 55,020.90/x
  3. Step 3: Cross multiply
    62,408.10x = 93,612.15 × 55,020.90
  4. Step 4: Simplify right side
    62,408.10x = 5,150,624,743.94
  5. Step 5: Solve for x
    x = 5,150,624,743.94/62,408.10
  6. Step 6: Final answer
    x = 82,531.35

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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.