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Finding the Fourth Proportional to 18,433.97, 27,648.22 and 9,071.45

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Solution

The fourth proportional to 18,433.97, 27,648.22 and 9,071.45 is: 13,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,433.97 : 27,648.22 = 9,071.45 : x
  2. Step 2: Convert to fraction form
    18,433.97/27,648.22 = 9,071.45/x
  3. Step 3: Cross multiply
    18,433.97x = 27,648.22 × 9,071.45
  4. Step 4: Simplify right side
    18,433.97x = 250,809,445.32
  5. Step 5: Solve for x
    x = 250,809,445.32/18,433.97
  6. Step 6: Final answer
    x = 13,605.83

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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.