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Finding the Fourth Proportional to 18,322.87, 27,487.97 and 7,792.83

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Solution

The fourth proportional to 18,322.87, 27,487.97 and 7,792.83 is: 11,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.87 : 27,487.97 = 7,792.83 : x
  2. Step 2: Convert to fraction form
    18,322.87/27,487.97 = 7,792.83/x
  3. Step 3: Cross multiply
    18,322.87x = 27,487.97 × 7,792.83
  4. Step 4: Simplify right side
    18,322.87x = 214,209,077.26
  5. Step 5: Solve for x
    x = 214,209,077.26/18,322.87
  6. Step 6: Final answer
    x = 11,690.80

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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.