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Finding the Fourth Proportional to 18,152.58, 27,217.02 and 7,629.32

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Solution

The fourth proportional to 18,152.58, 27,217.02 and 7,629.32 is: 11,439.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.58 : 27,217.02 = 7,629.32 : x
  2. Step 2: Convert to fraction form
    18,152.58/27,217.02 = 7,629.32/x
  3. Step 3: Cross multiply
    18,152.58x = 27,217.02 × 7,629.32
  4. Step 4: Simplify right side
    18,152.58x = 207,647,355.03
  5. Step 5: Solve for x
    x = 207,647,355.03/18,152.58
  6. Step 6: Final answer
    x = 11,439.00

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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.