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Finding the Fourth Proportional to 18,797.94, 25,943.45 and 11,244.20

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Solution

The fourth proportional to 18,797.94, 25,943.45 and 11,244.20 is: 15,518.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.94 : 25,943.45 = 11,244.20 : x
  2. Step 2: Convert to fraction form
    18,797.94/25,943.45 = 11,244.20/x
  3. Step 3: Cross multiply
    18,797.94x = 25,943.45 × 11,244.20
  4. Step 4: Simplify right side
    18,797.94x = 291,713,154.55
  5. Step 5: Solve for x
    x = 291,713,154.55/18,797.94
  6. Step 6: Final answer
    x = 15,518.36

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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.