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Finding the Fourth Proportional to 18,294.44, 27,443.88 and 5,815.17

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Solution

The fourth proportional to 18,294.44, 27,443.88 and 5,815.17 is: 8,723.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.44 : 27,443.88 = 5,815.17 : x
  2. Step 2: Convert to fraction form
    18,294.44/27,443.88 = 5,815.17/x
  3. Step 3: Cross multiply
    18,294.44x = 27,443.88 × 5,815.17
  4. Step 4: Simplify right side
    18,294.44x = 159,590,827.66
  5. Step 5: Solve for x
    x = 159,590,827.66/18,294.44
  6. Step 6: Final answer
    x = 8,723.46

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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.