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Finding the Fourth Proportional to 60,677.68, 91,057.52 and 21,235.14

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Solution

The fourth proportional to 60,677.68, 91,057.52 and 21,235.14 is: 31,867.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,677.68 : 91,057.52 = 21,235.14 : x
  2. Step 2: Convert to fraction form
    60,677.68/91,057.52 = 21,235.14/x
  3. Step 3: Cross multiply
    60,677.68x = 91,057.52 × 21,235.14
  4. Step 4: Simplify right side
    60,677.68x = 1,933,619,185.25
  5. Step 5: Solve for x
    x = 1,933,619,185.25/60,677.68
  6. Step 6: Final answer
    x = 31,867.06

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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.