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Finding the Fourth Proportional to 18,532.56, 27,799.04 and 7,289.04

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Solution

The fourth proportional to 18,532.56, 27,799.04 and 7,289.04 is: 10,933.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,532.56 : 27,799.04 = 7,289.04 : x
  2. Step 2: Convert to fraction form
    18,532.56/27,799.04 = 7,289.04/x
  3. Step 3: Cross multiply
    18,532.56x = 27,799.04 × 7,289.04
  4. Step 4: Simplify right side
    18,532.56x = 202,628,314.52
  5. Step 5: Solve for x
    x = 202,628,314.52/18,532.56
  6. Step 6: Final answer
    x = 10,933.64

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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.