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Finding the Fourth Proportional to 64,233.81, 96,371.67 and 28,690.80

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Solution

The fourth proportional to 64,233.81, 96,371.67 and 28,690.80 is: 43,045.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,233.81 : 96,371.67 = 28,690.80 : x
  2. Step 2: Convert to fraction form
    64,233.81/96,371.67 = 28,690.80/x
  3. Step 3: Cross multiply
    64,233.81x = 96,371.67 × 28,690.80
  4. Step 4: Simplify right side
    64,233.81x = 2,764,980,309.64
  5. Step 5: Solve for x
    x = 2,764,980,309.64/64,233.81
  6. Step 6: Final answer
    x = 43,045.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.