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Finding the Fourth Proportional to 14,794.40, 22,159.20 and 8,940.80

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Solution

The fourth proportional to 14,794.40, 22,159.20 and 8,940.80 is: 13,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,794.40 : 22,159.20 = 8,940.80 : x
  2. Step 2: Convert to fraction form
    14,794.40/22,159.20 = 8,940.80/x
  3. Step 3: Cross multiply
    14,794.40x = 22,159.20 × 8,940.80
  4. Step 4: Simplify right side
    14,794.40x = 198,120,975.36
  5. Step 5: Solve for x
    x = 198,120,975.36/14,794.40
  6. Step 6: Final answer
    x = 13,391.62

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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.