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Finding the Fourth Proportional to 11,866.17, 17,801.91 and 4,750.83

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Solution

The fourth proportional to 11,866.17, 17,801.91 and 4,750.83 is: 7,127.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.17 : 17,801.91 = 4,750.83 : x
  2. Step 2: Convert to fraction form
    11,866.17/17,801.91 = 4,750.83/x
  3. Step 3: Cross multiply
    11,866.17x = 17,801.91 × 4,750.83
  4. Step 4: Simplify right side
    11,866.17x = 84,573,848.09
  5. Step 5: Solve for x
    x = 84,573,848.09/11,866.17
  6. Step 6: Final answer
    x = 7,127.31

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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.