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Finding the Fourth Proportional to 33,048, 49,579.84 and 11,160

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Solution

The fourth proportional to 33,048, 49,579.84 and 11,160 is: 16,742.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,048 : 49,579.84 = 11,160 : x
  2. Step 2: Convert to fraction form
    33,048/49,579.84 = 11,160/x
  3. Step 3: Cross multiply
    33,048x = 49,579.84 × 11,160
  4. Step 4: Simplify right side
    33,048x = 553,311,014.40
  5. Step 5: Solve for x
    x = 553,311,014.40/33,048
  6. Step 6: Final answer
    x = 16,742.65

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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.