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Finding the Fourth Proportional to 8,965.93, 13,440.70 and 3,772.17

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Solution

The fourth proportional to 8,965.93, 13,440.70 and 3,772.17 is: 5,654.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.93 : 13,440.70 = 3,772.17 : x
  2. Step 2: Convert to fraction form
    8,965.93/13,440.70 = 3,772.17/x
  3. Step 3: Cross multiply
    8,965.93x = 13,440.70 × 3,772.17
  4. Step 4: Simplify right side
    8,965.93x = 50,700,586.46
  5. Step 5: Solve for x
    x = 50,700,586.46/8,965.93
  6. Step 6: Final answer
    x = 5,654.81

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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.