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Finding the Fourth Proportional to 14,366.80, 19,824.78 and 8,079.04

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Solution

The fourth proportional to 14,366.80, 19,824.78 and 8,079.04 is: 11,148.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,366.80 : 19,824.78 = 8,079.04 : x
  2. Step 2: Convert to fraction form
    14,366.80/19,824.78 = 8,079.04/x
  3. Step 3: Cross multiply
    14,366.80x = 19,824.78 × 8,079.04
  4. Step 4: Simplify right side
    14,366.80x = 160,165,190.61
  5. Step 5: Solve for x
    x = 160,165,190.61/14,366.80
  6. Step 6: Final answer
    x = 11,148.29

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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.