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Finding the Fourth Proportional to 64,899.07, 89,553.09 and 37,668.87

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Solution

The fourth proportional to 64,899.07, 89,553.09 and 37,668.87 is: 51,978.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,899.07 : 89,553.09 = 37,668.87 : x
  2. Step 2: Convert to fraction form
    64,899.07/89,553.09 = 37,668.87/x
  3. Step 3: Cross multiply
    64,899.07x = 89,553.09 × 37,668.87
  4. Step 4: Simplify right side
    64,899.07x = 3,373,364,098.43
  5. Step 5: Solve for x
    x = 3,373,364,098.43/64,899.07
  6. Step 6: Final answer
    x = 51,978.62

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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.