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Finding the Fourth Proportional to 19,042.75, 28,577.09 and 6,730.75

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Solution

The fourth proportional to 19,042.75, 28,577.09 and 6,730.75 is: 10,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,042.75 : 28,577.09 = 6,730.75 : x
  2. Step 2: Convert to fraction form
    19,042.75/28,577.09 = 6,730.75/x
  3. Step 3: Cross multiply
    19,042.75x = 28,577.09 × 6,730.75
  4. Step 4: Simplify right side
    19,042.75x = 192,345,248.52
  5. Step 5: Solve for x
    x = 192,345,248.52/19,042.75
  6. Step 6: Final answer
    x = 10,100.71

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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.