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Finding the Fourth Proportional to 18,591.69, 27,859.84 and 10,274.08

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Solution

The fourth proportional to 18,591.69, 27,859.84 and 10,274.08 is: 15,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.69 : 27,859.84 = 10,274.08 : x
  2. Step 2: Convert to fraction form
    18,591.69/27,859.84 = 10,274.08/x
  3. Step 3: Cross multiply
    18,591.69x = 27,859.84 × 10,274.08
  4. Step 4: Simplify right side
    18,591.69x = 286,234,289.10
  5. Step 5: Solve for x
    x = 286,234,289.10/18,591.69
  6. Step 6: Final answer
    x = 15,395.82

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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.