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Finding the Fourth Proportional to 12,299.54, 18,448.86 and 6,755.48

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Solution

The fourth proportional to 12,299.54, 18,448.86 and 6,755.48 is: 10,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.54 : 18,448.86 = 6,755.48 : x
  2. Step 2: Convert to fraction form
    12,299.54/18,448.86 = 6,755.48/x
  3. Step 3: Cross multiply
    12,299.54x = 18,448.86 × 6,755.48
  4. Step 4: Simplify right side
    12,299.54x = 124,630,904.75
  5. Step 5: Solve for x
    x = 124,630,904.75/12,299.54
  6. Step 6: Final answer
    x = 10,132.97

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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.