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Finding the Fourth Proportional to 14,223.60, 19,628.49 and 7,935.96

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Solution

The fourth proportional to 14,223.60, 19,628.49 and 7,935.96 is: 10,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,223.60 : 19,628.49 = 7,935.96 : x
  2. Step 2: Convert to fraction form
    14,223.60/19,628.49 = 7,935.96/x
  3. Step 3: Cross multiply
    14,223.60x = 19,628.49 × 7,935.96
  4. Step 4: Simplify right side
    14,223.60x = 155,770,911.50
  5. Step 5: Solve for x
    x = 155,770,911.50/14,223.60
  6. Step 6: Final answer
    x = 10,951.58

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Why These Related Problems?

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