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Finding the Fourth Proportional to 18,797.71, 25,940.83 and 10,300.15

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Solution

The fourth proportional to 18,797.71, 25,940.83 and 10,300.15 is: 14,214.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.71 : 25,940.83 = 10,300.15 : x
  2. Step 2: Convert to fraction form
    18,797.71/25,940.83 = 10,300.15/x
  3. Step 3: Cross multiply
    18,797.71x = 25,940.83 × 10,300.15
  4. Step 4: Simplify right side
    18,797.71x = 267,194,388.62
  5. Step 5: Solve for x
    x = 267,194,388.62/18,797.71
  6. Step 6: Final answer
    x = 14,214.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.