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Finding the Fourth Proportional to 18,398.41, 25,393.31 and 10,441.38

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Solution

The fourth proportional to 18,398.41, 25,393.31 and 10,441.38 is: 14,411.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.41 : 25,393.31 = 10,441.38 : x
  2. Step 2: Convert to fraction form
    18,398.41/25,393.31 = 10,441.38/x
  3. Step 3: Cross multiply
    18,398.41x = 25,393.31 × 10,441.38
  4. Step 4: Simplify right side
    18,398.41x = 265,141,019.99
  5. Step 5: Solve for x
    x = 265,141,019.99/18,398.41
  6. Step 6: Final answer
    x = 14,411.08

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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.