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Finding the Fourth Proportional to 64,601.94, 89,148.60 and 35,921.46

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Solution

The fourth proportional to 64,601.94, 89,148.60 and 35,921.46 is: 49,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,601.94 : 89,148.60 = 35,921.46 : x
  2. Step 2: Convert to fraction form
    64,601.94/89,148.60 = 35,921.46/x
  3. Step 3: Cross multiply
    64,601.94x = 89,148.60 × 35,921.46
  4. Step 4: Simplify right side
    64,601.94x = 3,202,347,868.96
  5. Step 5: Solve for x
    x = 3,202,347,868.96/64,601.94
  6. Step 6: Final answer
    x = 49,570.46

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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.