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Finding the Fourth Proportional to 64,610.75, 89,149.77 and 37,748.07

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Solution

The fourth proportional to 64,610.75, 89,149.77 and 37,748.07 is: 52,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,610.75 : 89,149.77 = 37,748.07 : x
  2. Step 2: Convert to fraction form
    64,610.75/89,149.77 = 37,748.07/x
  3. Step 3: Cross multiply
    64,610.75x = 89,149.77 × 37,748.07
  4. Step 4: Simplify right side
    64,610.75x = 3,365,231,934.13
  5. Step 5: Solve for x
    x = 3,365,231,934.13/64,610.75
  6. Step 6: Final answer
    x = 52,084.70

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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.