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Finding the Fourth Proportional to 74,584.92, 111,880.86 and 21,994.80

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Solution

The fourth proportional to 74,584.92, 111,880.86 and 21,994.80 is: 32,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,584.92 : 111,880.86 = 21,994.80 : x
  2. Step 2: Convert to fraction form
    74,584.92/111,880.86 = 21,994.80/x
  3. Step 3: Cross multiply
    74,584.92x = 111,880.86 × 21,994.80
  4. Step 4: Simplify right side
    74,584.92x = 2,460,797,139.53
  5. Step 5: Solve for x
    x = 2,460,797,139.53/74,584.92
  6. Step 6: Final answer
    x = 32,993.23

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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.