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Finding the Fourth Proportional to 60,675.19, 91,053.77 and 21,232.64

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Solution

The fourth proportional to 60,675.19, 91,053.77 and 21,232.64 is: 31,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,675.19 : 91,053.77 = 21,232.64 : x
  2. Step 2: Convert to fraction form
    60,675.19/91,053.77 = 21,232.64/x
  3. Step 3: Cross multiply
    60,675.19x = 91,053.77 × 21,232.64
  4. Step 4: Simplify right side
    60,675.19x = 1,933,311,919.05
  5. Step 5: Solve for x
    x = 1,933,311,919.05/60,675.19
  6. Step 6: Final answer
    x = 31,863.30

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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.