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Finding the Fourth Proportional to 7,751.49, 11,620.76 and 3,594.47

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Solution

The fourth proportional to 7,751.49, 11,620.76 and 3,594.47 is: 5,388.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.49 : 11,620.76 = 3,594.47 : x
  2. Step 2: Convert to fraction form
    7,751.49/11,620.76 = 3,594.47/x
  3. Step 3: Cross multiply
    7,751.49x = 11,620.76 × 3,594.47
  4. Step 4: Simplify right side
    7,751.49x = 41,770,397.12
  5. Step 5: Solve for x
    x = 41,770,397.12/7,751.49
  6. Step 6: Final answer
    x = 5,388.69

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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.