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Finding the Fourth Proportional to 18,608.94, 27,863.63 and 15,656.49

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Solution

The fourth proportional to 18,608.94, 27,863.63 and 15,656.49 is: 23,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.94 : 27,863.63 = 15,656.49 : x
  2. Step 2: Convert to fraction form
    18,608.94/27,863.63 = 15,656.49/x
  3. Step 3: Cross multiply
    18,608.94x = 27,863.63 × 15,656.49
  4. Step 4: Simplify right side
    18,608.94x = 436,246,624.89
  5. Step 5: Solve for x
    x = 436,246,624.89/18,608.94
  6. Step 6: Final answer
    x = 23,442.85

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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.