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Finding the Fourth Proportional to 18,615.48, 27,923.86 and 9,376.44

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Solution

The fourth proportional to 18,615.48, 27,923.86 and 9,376.44 is: 14,064.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.48 : 27,923.86 = 9,376.44 : x
  2. Step 2: Convert to fraction form
    18,615.48/27,923.86 = 9,376.44/x
  3. Step 3: Cross multiply
    18,615.48x = 27,923.86 × 9,376.44
  4. Step 4: Simplify right side
    18,615.48x = 261,826,397.86
  5. Step 5: Solve for x
    x = 261,826,397.86/18,615.48
  6. Step 6: Final answer
    x = 14,064.98

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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.