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Finding the Fourth Proportional to 64,660.71, 89,231.76 and 36,366.38

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Solution

The fourth proportional to 64,660.71, 89,231.76 and 36,366.38 is: 50,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,660.71 : 89,231.76 = 36,366.38 : x
  2. Step 2: Convert to fraction form
    64,660.71/89,231.76 = 36,366.38/x
  3. Step 3: Cross multiply
    64,660.71x = 89,231.76 × 36,366.38
  4. Step 4: Simplify right side
    64,660.71x = 3,245,035,646.07
  5. Step 5: Solve for x
    x = 3,245,035,646.07/64,660.71
  6. Step 6: Final answer
    x = 50,185.59

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1.5x scale

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.