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Finding the Fourth Proportional to 8,917.26, 13,362.93 and 5,001.72

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Solution

The fourth proportional to 8,917.26, 13,362.93 and 5,001.72 is: 7,495.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.26 : 13,362.93 = 5,001.72 : x
  2. Step 2: Convert to fraction form
    8,917.26/13,362.93 = 5,001.72/x
  3. Step 3: Cross multiply
    8,917.26x = 13,362.93 × 5,001.72
  4. Step 4: Simplify right side
    8,917.26x = 66,837,634.24
  5. Step 5: Solve for x
    x = 66,837,634.24/8,917.26
  6. Step 6: Final answer
    x = 7,495.31

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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.