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Finding the Fourth Proportional to 13,917.92, 19,206.69 and 7,630.34

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Solution

The fourth proportional to 13,917.92, 19,206.69 and 7,630.34 is: 10,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.92 : 19,206.69 = 7,630.34 : x
  2. Step 2: Convert to fraction form
    13,917.92/19,206.69 = 7,630.34/x
  3. Step 3: Cross multiply
    13,917.92x = 19,206.69 × 7,630.34
  4. Step 4: Simplify right side
    13,917.92x = 146,553,478.94
  5. Step 5: Solve for x
    x = 146,553,478.94/13,917.92
  6. Step 6: Final answer
    x = 10,529.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.