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Finding the Fourth Proportional to 14,871.62, 20,519.46 and 10,092.21

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Solution

The fourth proportional to 14,871.62, 20,519.46 and 10,092.21 is: 13,924.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.62 : 20,519.46 = 10,092.21 : x
  2. Step 2: Convert to fraction form
    14,871.62/20,519.46 = 10,092.21/x
  3. Step 3: Cross multiply
    14,871.62x = 20,519.46 × 10,092.21
  4. Step 4: Simplify right side
    14,871.62x = 207,086,699.41
  5. Step 5: Solve for x
    x = 207,086,699.41/14,871.62
  6. Step 6: Final answer
    x = 13,924.96

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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.