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Finding the Fourth Proportional to 7,591.69, 11,387.54 and 2,658.63

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Solution

The fourth proportional to 7,591.69, 11,387.54 and 2,658.63 is: 3,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.69 : 11,387.54 = 2,658.63 : x
  2. Step 2: Convert to fraction form
    7,591.69/11,387.54 = 2,658.63/x
  3. Step 3: Cross multiply
    7,591.69x = 11,387.54 × 2,658.63
  4. Step 4: Simplify right side
    7,591.69x = 30,275,255.47
  5. Step 5: Solve for x
    x = 30,275,255.47/7,591.69
  6. Step 6: Final answer
    x = 3,987.95

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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.