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Finding the Fourth Proportional to 18,608.84, 27,880.44 and 9,824.36

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Solution

The fourth proportional to 18,608.84, 27,880.44 and 9,824.36 is: 14,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.84 : 27,880.44 = 9,824.36 : x
  2. Step 2: Convert to fraction form
    18,608.84/27,880.44 = 9,824.36/x
  3. Step 3: Cross multiply
    18,608.84x = 27,880.44 × 9,824.36
  4. Step 4: Simplify right side
    18,608.84x = 273,907,479.52
  5. Step 5: Solve for x
    x = 273,907,479.52/18,608.84
  6. Step 6: Final answer
    x = 14,719.21

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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.