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Finding the Fourth Proportional to 18,216.63, 27,304.70 and 7,693.92

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Solution

The fourth proportional to 18,216.63, 27,304.70 and 7,693.92 is: 11,532.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.63 : 27,304.70 = 7,693.92 : x
  2. Step 2: Convert to fraction form
    18,216.63/27,304.70 = 7,693.92/x
  3. Step 3: Cross multiply
    18,216.63x = 27,304.70 × 7,693.92
  4. Step 4: Simplify right side
    18,216.63x = 210,080,138.95
  5. Step 5: Solve for x
    x = 210,080,138.95/18,216.63
  6. Step 6: Final answer
    x = 11,532.33

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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.