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Finding the Fourth Proportional to 64,635.96, 89,204.64 and 37,787.52

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Solution

The fourth proportional to 64,635.96, 89,204.64 and 37,787.52 is: 52,150.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,635.96 : 89,204.64 = 37,787.52 : x
  2. Step 2: Convert to fraction form
    64,635.96/89,204.64 = 37,787.52/x
  3. Step 3: Cross multiply
    64,635.96x = 89,204.64 × 37,787.52
  4. Step 4: Simplify right side
    64,635.96x = 3,370,822,118.09
  5. Step 5: Solve for x
    x = 3,370,822,118.09/64,635.96
  6. Step 6: Final answer
    x = 52,150.88

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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.