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Finding the Fourth Proportional to 22,663.82, 33,990.58 and 8,618.84

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Solution

The fourth proportional to 22,663.82, 33,990.58 and 8,618.84 is: 12,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,663.82 : 33,990.58 = 8,618.84 : x
  2. Step 2: Convert to fraction form
    22,663.82/33,990.58 = 8,618.84/x
  3. Step 3: Cross multiply
    22,663.82x = 33,990.58 × 8,618.84
  4. Step 4: Simplify right side
    22,663.82x = 292,959,370.53
  5. Step 5: Solve for x
    x = 292,959,370.53/22,663.82
  6. Step 6: Final answer
    x = 12,926.30

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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.