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Finding the Fourth Proportional to 8,917.92, 13,368.60 and 3,073.14

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Solution

The fourth proportional to 8,917.92, 13,368.60 and 3,073.14 is: 4,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.92 : 13,368.60 = 3,073.14 : x
  2. Step 2: Convert to fraction form
    8,917.92/13,368.60 = 3,073.14/x
  3. Step 3: Cross multiply
    8,917.92x = 13,368.60 × 3,073.14
  4. Step 4: Simplify right side
    8,917.92x = 41,083,579.40
  5. Step 5: Solve for x
    x = 41,083,579.40/8,917.92
  6. Step 6: Final answer
    x = 4,606.86

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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.