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Finding the Fourth Proportional to 64,856.76, 89,502.44 and 36,562.36

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Solution

The fourth proportional to 64,856.76, 89,502.44 and 36,562.36 is: 50,456.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,856.76 : 89,502.44 = 36,562.36 : x
  2. Step 2: Convert to fraction form
    64,856.76/89,502.44 = 36,562.36/x
  3. Step 3: Cross multiply
    64,856.76x = 89,502.44 × 36,562.36
  4. Step 4: Simplify right side
    64,856.76x = 3,272,420,432.16
  5. Step 5: Solve for x
    x = 3,272,420,432.16/64,856.76
  6. Step 6: Final answer
    x = 50,456.12

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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.