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Finding the Fourth Proportional to 7,791.74, 10,752.87 and 4,434.49

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Solution

The fourth proportional to 7,791.74, 10,752.87 and 4,434.49 is: 6,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.74 : 10,752.87 = 4,434.49 : x
  2. Step 2: Convert to fraction form
    7,791.74/10,752.87 = 4,434.49/x
  3. Step 3: Cross multiply
    7,791.74x = 10,752.87 × 4,434.49
  4. Step 4: Simplify right side
    7,791.74x = 47,683,418.55
  5. Step 5: Solve for x
    x = 47,683,418.55/7,791.74
  6. Step 6: Final answer
    x = 6,119.74

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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.