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Finding the Fourth Proportional to 68,990.24, 103,498.56 and 22,230.56

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Solution

The fourth proportional to 68,990.24, 103,498.56 and 22,230.56 is: 33,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,990.24 : 103,498.56 = 22,230.56 : x
  2. Step 2: Convert to fraction form
    68,990.24/103,498.56 = 22,230.56/x
  3. Step 3: Cross multiply
    68,990.24x = 103,498.56 × 22,230.56
  4. Step 4: Simplify right side
    68,990.24x = 2,300,830,947.99
  5. Step 5: Solve for x
    x = 2,300,830,947.99/68,990.24
  6. Step 6: Final answer
    x = 33,350.09

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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.