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Finding the Fourth Proportional to 69,216.50, 103,821.29 and 27,104.30

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Solution

The fourth proportional to 69,216.50, 103,821.29 and 27,104.30 is: 40,655.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,216.50 : 103,821.29 = 27,104.30 : x
  2. Step 2: Convert to fraction form
    69,216.50/103,821.29 = 27,104.30/x
  3. Step 3: Cross multiply
    69,216.50x = 103,821.29 × 27,104.30
  4. Step 4: Simplify right side
    69,216.50x = 2,814,003,087.35
  5. Step 5: Solve for x
    x = 2,814,003,087.35/69,216.50
  6. Step 6: Final answer
    x = 40,655.09

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1.5x scale

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.