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Finding the Fourth Proportional to 64,504.62, 89,000.79 and 37,631.79

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Solution

The fourth proportional to 64,504.62, 89,000.79 and 37,631.79 is: 51,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,504.62 : 89,000.79 = 37,631.79 : x
  2. Step 2: Convert to fraction form
    64,504.62/89,000.79 = 37,631.79/x
  3. Step 3: Cross multiply
    64,504.62x = 89,000.79 × 37,631.79
  4. Step 4: Simplify right side
    64,504.62x = 3,349,259,039.11
  5. Step 5: Solve for x
    x = 3,349,259,039.11/64,504.62
  6. Step 6: Final answer
    x = 51,922.78

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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.