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Finding the Fourth Proportional to 14,433.80, 19,920.18 and 8,843.40

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Solution

The fourth proportional to 14,433.80, 19,920.18 and 8,843.40 is: 12,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,433.80 : 19,920.18 = 8,843.40 : x
  2. Step 2: Convert to fraction form
    14,433.80/19,920.18 = 8,843.40/x
  3. Step 3: Cross multiply
    14,433.80x = 19,920.18 × 8,843.40
  4. Step 4: Simplify right side
    14,433.80x = 176,162,119.81
  5. Step 5: Solve for x
    x = 176,162,119.81/14,433.80
  6. Step 6: Final answer
    x = 12,204.83

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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.