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Finding the Fourth Proportional to 12,249.93, 16,898.68 and 7,213.91

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Solution

The fourth proportional to 12,249.93, 16,898.68 and 7,213.91 is: 9,951.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.93 : 16,898.68 = 7,213.91 : x
  2. Step 2: Convert to fraction form
    12,249.93/16,898.68 = 7,213.91/x
  3. Step 3: Cross multiply
    12,249.93x = 16,898.68 × 7,213.91
  4. Step 4: Simplify right side
    12,249.93x = 121,905,535.64
  5. Step 5: Solve for x
    x = 121,905,535.64/12,249.93
  6. Step 6: Final answer
    x = 9,951.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.