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Finding the Fourth Proportional to 18,323.62, 27,483.19 and 7,797.87

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Solution

The fourth proportional to 18,323.62, 27,483.19 and 7,797.87 is: 11,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.62 : 27,483.19 = 7,797.87 : x
  2. Step 2: Convert to fraction form
    18,323.62/27,483.19 = 7,797.87/x
  3. Step 3: Cross multiply
    18,323.62x = 27,483.19 × 7,797.87
  4. Step 4: Simplify right side
    18,323.62x = 214,310,342.81
  5. Step 5: Solve for x
    x = 214,310,342.81/18,323.62
  6. Step 6: Final answer
    x = 11,695.85

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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.