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Finding the Fourth Proportional to 18,398.25, 25,392.89 and 10,844.12

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Solution

The fourth proportional to 18,398.25, 25,392.89 and 10,844.12 is: 14,966.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.25 : 25,392.89 = 10,844.12 : x
  2. Step 2: Convert to fraction form
    18,398.25/25,392.89 = 10,844.12/x
  3. Step 3: Cross multiply
    18,398.25x = 25,392.89 × 10,844.12
  4. Step 4: Simplify right side
    18,398.25x = 275,363,636.90
  5. Step 5: Solve for x
    x = 275,363,636.90/18,398.25
  6. Step 6: Final answer
    x = 14,966.84

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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.