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Finding the Fourth Proportional to 63,322.56, 94,951.68 and 21,187.68

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Solution

The fourth proportional to 63,322.56, 94,951.68 and 21,187.68 is: 31,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,322.56 : 94,951.68 = 21,187.68 : x
  2. Step 2: Convert to fraction form
    63,322.56/94,951.68 = 21,187.68/x
  3. Step 3: Cross multiply
    63,322.56x = 94,951.68 × 21,187.68
  4. Step 4: Simplify right side
    63,322.56x = 2,011,805,811.30
  5. Step 5: Solve for x
    x = 2,011,805,811.30/63,322.56
  6. Step 6: Final answer
    x = 31,770.76

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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.