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Finding the Fourth Proportional to 64,871.92, 89,523.21 and 35,063.92

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Solution

The fourth proportional to 64,871.92, 89,523.21 and 35,063.92 is: 48,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,871.92 : 89,523.21 = 35,063.92 : x
  2. Step 2: Convert to fraction form
    64,871.92/89,523.21 = 35,063.92/x
  3. Step 3: Cross multiply
    64,871.92x = 89,523.21 × 35,063.92
  4. Step 4: Simplify right side
    64,871.92x = 3,139,034,673.58
  5. Step 5: Solve for x
    x = 3,139,034,673.58/64,871.92
  6. Step 6: Final answer
    x = 48,388.19

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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.