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Finding the Fourth Proportional to 12,463.92, 18,673.92 and 11,107.98

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Solution

The fourth proportional to 12,463.92, 18,673.92 and 11,107.98 is: 16,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.92 : 18,673.92 = 11,107.98 : x
  2. Step 2: Convert to fraction form
    12,463.92/18,673.92 = 11,107.98/x
  3. Step 3: Cross multiply
    12,463.92x = 18,673.92 × 11,107.98
  4. Step 4: Simplify right side
    12,463.92x = 207,429,529.88
  5. Step 5: Solve for x
    x = 207,429,529.88/12,463.92
  6. Step 6: Final answer
    x = 16,642.40

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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.