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Finding the Fourth Proportional to 11,877.01, 17,814.89 and 4,480.99

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Solution

The fourth proportional to 11,877.01, 17,814.89 and 4,480.99 is: 6,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.01 : 17,814.89 = 4,480.99 : x
  2. Step 2: Convert to fraction form
    11,877.01/17,814.89 = 4,480.99/x
  3. Step 3: Cross multiply
    11,877.01x = 17,814.89 × 4,480.99
  4. Step 4: Simplify right side
    11,877.01x = 79,828,321.54
  5. Step 5: Solve for x
    x = 79,828,321.54/11,877.01
  6. Step 6: Final answer
    x = 6,721.25

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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.