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Finding the Fourth Proportional to 20,658.25, 30,962.77 and 10,794.88

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Solution

The fourth proportional to 20,658.25, 30,962.77 and 10,794.88 is: 16,179.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.25 : 30,962.77 = 10,794.88 : x
  2. Step 2: Convert to fraction form
    20,658.25/30,962.77 = 10,794.88/x
  3. Step 3: Cross multiply
    20,658.25x = 30,962.77 × 10,794.88
  4. Step 4: Simplify right side
    20,658.25x = 334,239,282.22
  5. Step 5: Solve for x
    x = 334,239,282.22/20,658.25
  6. Step 6: Final answer
    x = 16,179.46

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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.