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Finding the Fourth Proportional to 8,908.60, 13,364.11 and 3,713.26

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Solution

The fourth proportional to 8,908.60, 13,364.11 and 3,713.26 is: 5,570.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,908.60 : 13,364.11 = 3,713.26 : x
  2. Step 2: Convert to fraction form
    8,908.60/13,364.11 = 3,713.26/x
  3. Step 3: Cross multiply
    8,908.60x = 13,364.11 × 3,713.26
  4. Step 4: Simplify right side
    8,908.60x = 49,624,415.10
  5. Step 5: Solve for x
    x = 49,624,415.10/8,908.60
  6. Step 6: Final answer
    x = 5,570.39

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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.