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Finding the Fourth Proportional to 11,876.51, 17,814.14 and 4,480.49

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Solution

The fourth proportional to 11,876.51, 17,814.14 and 4,480.49 is: 6,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.51 : 17,814.14 = 4,480.49 : x
  2. Step 2: Convert to fraction form
    11,876.51/17,814.14 = 4,480.49/x
  3. Step 3: Cross multiply
    11,876.51x = 17,814.14 × 4,480.49
  4. Step 4: Simplify right side
    11,876.51x = 79,816,053.73
  5. Step 5: Solve for x
    x = 79,816,053.73/11,876.51
  6. Step 6: Final answer
    x = 6,720.50

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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.