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Finding the Fourth Proportional to 64,955.72, 89,634.66 and 36,657.56

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Solution

The fourth proportional to 64,955.72, 89,634.66 and 36,657.56 is: 50,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,955.72 : 89,634.66 = 36,657.56 : x
  2. Step 2: Convert to fraction form
    64,955.72/89,634.66 = 36,657.56/x
  3. Step 3: Cross multiply
    64,955.72x = 89,634.66 × 36,657.56
  4. Step 4: Simplify right side
    64,955.72x = 3,285,787,927.03
  5. Step 5: Solve for x
    x = 3,285,787,927.03/64,955.72
  6. Step 6: Final answer
    x = 50,585.04

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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.