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Finding the Fourth Proportional to 7,924.52, 10,936.02 and 4,387.88

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Solution

The fourth proportional to 7,924.52, 10,936.02 and 4,387.88 is: 6,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.52 : 10,936.02 = 4,387.88 : x
  2. Step 2: Convert to fraction form
    7,924.52/10,936.02 = 4,387.88/x
  3. Step 3: Cross multiply
    7,924.52x = 10,936.02 × 4,387.88
  4. Step 4: Simplify right side
    7,924.52x = 47,985,943.44
  5. Step 5: Solve for x
    x = 47,985,943.44/7,924.52
  6. Step 6: Final answer
    x = 6,055.38

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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.