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Finding the Fourth Proportional to 64,437.66, 96,660.81 and 22,321.98

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Solution

The fourth proportional to 64,437.66, 96,660.81 and 22,321.98 is: 33,484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,437.66 : 96,660.81 = 22,321.98 : x
  2. Step 2: Convert to fraction form
    64,437.66/96,660.81 = 22,321.98/x
  3. Step 3: Cross multiply
    64,437.66x = 96,660.81 × 22,321.98
  4. Step 4: Simplify right side
    64,437.66x = 2,157,660,667.60
  5. Step 5: Solve for x
    x = 2,157,660,667.60/64,437.66
  6. Step 6: Final answer
    x = 33,484.47

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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.