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Finding the Fourth Proportional to 7,924.84, 10,936.80 and 4,388.44

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Solution

The fourth proportional to 7,924.84, 10,936.80 and 4,388.44 is: 6,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.84 : 10,936.80 = 4,388.44 : x
  2. Step 2: Convert to fraction form
    7,924.84/10,936.80 = 4,388.44/x
  3. Step 3: Cross multiply
    7,924.84x = 10,936.80 × 4,388.44
  4. Step 4: Simplify right side
    7,924.84x = 47,995,490.59
  5. Step 5: Solve for x
    x = 47,995,490.59/7,924.84
  6. Step 6: Final answer
    x = 6,056.34

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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.