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Finding the Fourth Proportional to 33,989.69, 46,905.14 and 18,882.20

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Solution

The fourth proportional to 33,989.69, 46,905.14 and 18,882.20 is: 26,057.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,989.69 : 46,905.14 = 18,882.20 : x
  2. Step 2: Convert to fraction form
    33,989.69/46,905.14 = 18,882.20/x
  3. Step 3: Cross multiply
    33,989.69x = 46,905.14 × 18,882.20
  4. Step 4: Simplify right side
    33,989.69x = 885,672,398.98
  5. Step 5: Solve for x
    x = 885,672,398.98/33,989.69
  6. Step 6: Final answer
    x = 26,057.09

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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.