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Finding the Fourth Proportional to 64,639.68, 89,204.04 and 37,783.32

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Solution

The fourth proportional to 64,639.68, 89,204.04 and 37,783.32 is: 52,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,639.68 : 89,204.04 = 37,783.32 : x
  2. Step 2: Convert to fraction form
    64,639.68/89,204.04 = 37,783.32/x
  3. Step 3: Cross multiply
    64,639.68x = 89,204.04 × 37,783.32
  4. Step 4: Simplify right side
    64,639.68x = 3,370,424,788.61
  5. Step 5: Solve for x
    x = 3,370,424,788.61/64,639.68
  6. Step 6: Final answer
    x = 52,141.73

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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.