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Finding the Fourth Proportional to 14,245.44, 19,659.48 and 7,957.80

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Solution

The fourth proportional to 14,245.44, 19,659.48 and 7,957.80 is: 10,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,245.44 : 19,659.48 = 7,957.80 : x
  2. Step 2: Convert to fraction form
    14,245.44/19,659.48 = 7,957.80/x
  3. Step 3: Cross multiply
    14,245.44x = 19,659.48 × 7,957.80
  4. Step 4: Simplify right side
    14,245.44x = 156,446,209.94
  5. Step 5: Solve for x
    x = 156,446,209.94/14,245.44
  6. Step 6: Final answer
    x = 10,982.20

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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.