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Finding the Fourth Proportional to 11,019.43, 16,530.97 and 5,472.96

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Solution

The fourth proportional to 11,019.43, 16,530.97 and 5,472.96 is: 8,210.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.43 : 16,530.97 = 5,472.96 : x
  2. Step 2: Convert to fraction form
    11,019.43/16,530.97 = 5,472.96/x
  3. Step 3: Cross multiply
    11,019.43x = 16,530.97 × 5,472.96
  4. Step 4: Simplify right side
    11,019.43x = 90,473,337.57
  5. Step 5: Solve for x
    x = 90,473,337.57/11,019.43
  6. Step 6: Final answer
    x = 8,210.35

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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.