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Finding the Fourth Proportional to 64,959.92, 89,644.36 and 35,151.92

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Solution

The fourth proportional to 64,959.92, 89,644.36 and 35,151.92 is: 48,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.92 : 89,644.36 = 35,151.92 : x
  2. Step 2: Convert to fraction form
    64,959.92/89,644.36 = 35,151.92/x
  3. Step 3: Cross multiply
    64,959.92x = 89,644.36 × 35,151.92
  4. Step 4: Simplify right side
    64,959.92x = 3,151,171,371.17
  5. Step 5: Solve for x
    x = 3,151,171,371.17/64,959.92
  6. Step 6: Final answer
    x = 48,509.47

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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.