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Finding the Fourth Proportional to 18,326.44, 27,470.88 and 7,228.63

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Solution

The fourth proportional to 18,326.44, 27,470.88 and 7,228.63 is: 10,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,326.44 : 27,470.88 = 7,228.63 : x
  2. Step 2: Convert to fraction form
    18,326.44/27,470.88 = 7,228.63/x
  3. Step 3: Cross multiply
    18,326.44x = 27,470.88 × 7,228.63
  4. Step 4: Simplify right side
    18,326.44x = 198,576,827.29
  5. Step 5: Solve for x
    x = 198,576,827.29/18,326.44
  6. Step 6: Final answer
    x = 10,835.54

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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.