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Finding the Fourth Proportional to 14,348.50, 19,800.39 and 7,975.48

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Solution

The fourth proportional to 14,348.50, 19,800.39 and 7,975.48 is: 11,005.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,348.50 : 19,800.39 = 7,975.48 : x
  2. Step 2: Convert to fraction form
    14,348.50/19,800.39 = 7,975.48/x
  3. Step 3: Cross multiply
    14,348.50x = 19,800.39 × 7,975.48
  4. Step 4: Simplify right side
    14,348.50x = 157,917,614.44
  5. Step 5: Solve for x
    x = 157,917,614.44/14,348.50
  6. Step 6: Final answer
    x = 11,005.86

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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.