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Finding the Fourth Proportional to 45,818.32, 68,727.80 and 14,654.80

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Solution

The fourth proportional to 45,818.32, 68,727.80 and 14,654.80 is: 21,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,818.32 : 68,727.80 = 14,654.80 : x
  2. Step 2: Convert to fraction form
    45,818.32/68,727.80 = 14,654.80/x
  3. Step 3: Cross multiply
    45,818.32x = 68,727.80 × 14,654.80
  4. Step 4: Simplify right side
    45,818.32x = 1,007,192,163.44
  5. Step 5: Solve for x
    x = 1,007,192,163.44/45,818.32
  6. Step 6: Final answer
    x = 21,982.30

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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.