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Finding the Fourth Proportional to 62,318.84, 85,989.85 and 36,821.66

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Solution

The fourth proportional to 62,318.84, 85,989.85 and 36,821.66 is: 50,807.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,318.84 : 85,989.85 = 36,821.66 : x
  2. Step 2: Convert to fraction form
    62,318.84/85,989.85 = 36,821.66/x
  3. Step 3: Cross multiply
    62,318.84x = 85,989.85 × 36,821.66
  4. Step 4: Simplify right side
    62,318.84x = 3,166,288,498.15
  5. Step 5: Solve for x
    x = 3,166,288,498.15/62,318.84
  6. Step 6: Final answer
    x = 50,807.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.