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Finding the Fourth Proportional to 64,845.75, 89,487.14 and 35,037.75

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Solution

The fourth proportional to 64,845.75, 89,487.14 and 35,037.75 is: 48,352.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,845.75 : 89,487.14 = 35,037.75 : x
  2. Step 2: Convert to fraction form
    64,845.75/89,487.14 = 35,037.75/x
  3. Step 3: Cross multiply
    64,845.75x = 89,487.14 × 35,037.75
  4. Step 4: Simplify right side
    64,845.75x = 3,135,428,039.54
  5. Step 5: Solve for x
    x = 3,135,428,039.54/64,845.75
  6. Step 6: Final answer
    x = 48,352.10

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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.