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Finding the Fourth Proportional to 14,809.80, 22,209.30 and 5,921.40

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Solution

The fourth proportional to 14,809.80, 22,209.30 and 5,921.40 is: 8,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,809.80 : 22,209.30 = 5,921.40 : x
  2. Step 2: Convert to fraction form
    14,809.80/22,209.30 = 5,921.40/x
  3. Step 3: Cross multiply
    14,809.80x = 22,209.30 × 5,921.40
  4. Step 4: Simplify right side
    14,809.80x = 131,510,149.02
  5. Step 5: Solve for x
    x = 131,510,149.02/14,809.80
  6. Step 6: Final answer
    x = 8,879.94

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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.