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Finding the Fourth Proportional to 64,602.87, 89,151.89 and 35,921.64

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Solution

The fourth proportional to 64,602.87, 89,151.89 and 35,921.64 is: 49,571.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,602.87 : 89,151.89 = 35,921.64 : x
  2. Step 2: Convert to fraction form
    64,602.87/89,151.89 = 35,921.64/x
  3. Step 3: Cross multiply
    64,602.87x = 89,151.89 × 35,921.64
  4. Step 4: Simplify right side
    64,602.87x = 3,202,481,918.29
  5. Step 5: Solve for x
    x = 3,202,481,918.29/64,602.87
  6. Step 6: Final answer
    x = 49,571.82

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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.