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Finding the Fourth Proportional to 18,460.95, 27,645.09 and 11,411.97

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Solution

The fourth proportional to 18,460.95, 27,645.09 and 11,411.97 is: 17,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,460.95 : 27,645.09 = 11,411.97 : x
  2. Step 2: Convert to fraction form
    18,460.95/27,645.09 = 11,411.97/x
  3. Step 3: Cross multiply
    18,460.95x = 27,645.09 × 11,411.97
  4. Step 4: Simplify right side
    18,460.95x = 315,484,937.73
  5. Step 5: Solve for x
    x = 315,484,937.73/18,460.95
  6. Step 6: Final answer
    x = 17,089.31

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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.