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Finding the Fourth Proportional to 19,244.07, 28,843.70 and 8,147.07

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Solution

The fourth proportional to 19,244.07, 28,843.70 and 8,147.07 is: 12,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,244.07 : 28,843.70 = 8,147.07 : x
  2. Step 2: Convert to fraction form
    19,244.07/28,843.70 = 8,147.07/x
  3. Step 3: Cross multiply
    19,244.07x = 28,843.70 × 8,147.07
  4. Step 4: Simplify right side
    19,244.07x = 234,991,602.22
  5. Step 5: Solve for x
    x = 234,991,602.22/19,244.07
  6. Step 6: Final answer
    x = 12,211.12

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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.