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Finding the Fourth Proportional to 64,551.97, 89,079.79 and 35,871.54

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Solution

The fourth proportional to 64,551.97, 89,079.79 and 35,871.54 is: 49,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,551.97 : 89,079.79 = 35,871.54 : x
  2. Step 2: Convert to fraction form
    64,551.97/89,079.79 = 35,871.54/x
  3. Step 3: Cross multiply
    64,551.97x = 89,079.79 × 35,871.54
  4. Step 4: Simplify right side
    64,551.97x = 3,195,429,250.18
  5. Step 5: Solve for x
    x = 3,195,429,250.18/64,551.97
  6. Step 6: Final answer
    x = 49,501.65

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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.