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Finding the Fourth Proportional to 18,608.90, 27,914.19 and 5,282.84

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Solution

The fourth proportional to 18,608.90, 27,914.19 and 5,282.84 is: 7,924.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.90 : 27,914.19 = 5,282.84 : x
  2. Step 2: Convert to fraction form
    18,608.90/27,914.19 = 5,282.84/x
  3. Step 3: Cross multiply
    18,608.90x = 27,914.19 × 5,282.84
  4. Step 4: Simplify right side
    18,608.90x = 147,466,199.50
  5. Step 5: Solve for x
    x = 147,466,199.50/18,608.90
  6. Step 6: Final answer
    x = 7,924.50

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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.