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Finding the Fourth Proportional to 22,576.68, 33,860.16 and 6,990.84

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Solution

The fourth proportional to 22,576.68, 33,860.16 and 6,990.84 is: 10,484.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,576.68 : 33,860.16 = 6,990.84 : x
  2. Step 2: Convert to fraction form
    22,576.68/33,860.16 = 6,990.84/x
  3. Step 3: Cross multiply
    22,576.68x = 33,860.16 × 6,990.84
  4. Step 4: Simplify right side
    22,576.68x = 236,710,960.93
  5. Step 5: Solve for x
    x = 236,710,960.93/22,576.68
  6. Step 6: Final answer
    x = 10,484.76

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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.