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Finding the Fourth Proportional to 69,364.80, 104,061.60 and 22,621.20

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Solution

The fourth proportional to 69,364.80, 104,061.60 and 22,621.20 is: 33,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,364.80 : 104,061.60 = 22,621.20 : x
  2. Step 2: Convert to fraction form
    69,364.80/104,061.60 = 22,621.20/x
  3. Step 3: Cross multiply
    69,364.80x = 104,061.60 × 22,621.20
  4. Step 4: Simplify right side
    69,364.80x = 2,353,998,265.92
  5. Step 5: Solve for x
    x = 2,353,998,265.92/69,364.80
  6. Step 6: Final answer
    x = 33,936.50

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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.