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Finding the Fourth Proportional to 13,472.92, 18,592.86 and 8,167.96

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Solution

The fourth proportional to 13,472.92, 18,592.86 and 8,167.96 is: 11,271.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.92 : 18,592.86 = 8,167.96 : x
  2. Step 2: Convert to fraction form
    13,472.92/18,592.86 = 8,167.96/x
  3. Step 3: Cross multiply
    13,472.92x = 18,592.86 × 8,167.96
  4. Step 4: Simplify right side
    13,472.92x = 151,865,736.77
  5. Step 5: Solve for x
    x = 151,865,736.77/13,472.92
  6. Step 6: Final answer
    x = 11,271.92

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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.