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Finding the Fourth Proportional to 7,924.94, 10,936.33 and 4,339.87

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Solution

The fourth proportional to 7,924.94, 10,936.33 and 4,339.87 is: 5,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.94 : 10,936.33 = 4,339.87 : x
  2. Step 2: Convert to fraction form
    7,924.94/10,936.33 = 4,339.87/x
  3. Step 3: Cross multiply
    7,924.94x = 10,936.33 × 4,339.87
  4. Step 4: Simplify right side
    7,924.94x = 47,462,250.48
  5. Step 5: Solve for x
    x = 47,462,250.48/7,924.94
  6. Step 6: Final answer
    x = 5,988.97

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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.