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Finding the Fourth Proportional to 12,472.92, 17,212.55 and 6,883.92

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Solution

The fourth proportional to 12,472.92, 17,212.55 and 6,883.92 is: 9,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.92 : 17,212.55 = 6,883.92 : x
  2. Step 2: Convert to fraction form
    12,472.92/17,212.55 = 6,883.92/x
  3. Step 3: Cross multiply
    12,472.92x = 17,212.55 × 6,883.92
  4. Step 4: Simplify right side
    12,472.92x = 118,489,782.78
  5. Step 5: Solve for x
    x = 118,489,782.78/12,472.92
  6. Step 6: Final answer
    x = 9,499.76

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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.