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Finding the Fourth Proportional to 11,054.76, 16,581.84 and 4,480.80

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Solution

The fourth proportional to 11,054.76, 16,581.84 and 4,480.80 is: 6,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.76 : 16,581.84 = 4,480.80 : x
  2. Step 2: Convert to fraction form
    11,054.76/16,581.84 = 4,480.80/x
  3. Step 3: Cross multiply
    11,054.76x = 16,581.84 × 4,480.80
  4. Step 4: Simplify right side
    11,054.76x = 74,299,908.67
  5. Step 5: Solve for x
    x = 74,299,908.67/11,054.76
  6. Step 6: Final answer
    x = 6,721.08

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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.