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Finding the Fourth Proportional to 12,299.92, 18,359.04 and 11,433.04

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Solution

The fourth proportional to 12,299.92, 18,359.04 and 11,433.04 is: 17,065.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.92 : 18,359.04 = 11,433.04 : x
  2. Step 2: Convert to fraction form
    12,299.92/18,359.04 = 11,433.04/x
  3. Step 3: Cross multiply
    12,299.92x = 18,359.04 × 11,433.04
  4. Step 4: Simplify right side
    12,299.92x = 209,899,638.68
  5. Step 5: Solve for x
    x = 209,899,638.68/12,299.92
  6. Step 6: Final answer
    x = 17,065.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.