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Finding the Fourth Proportional to 8,930.84, 13,392.36 and 3,933.08

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Solution

The fourth proportional to 8,930.84, 13,392.36 and 3,933.08 is: 5,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.84 : 13,392.36 = 3,933.08 : x
  2. Step 2: Convert to fraction form
    8,930.84/13,392.36 = 3,933.08/x
  3. Step 3: Cross multiply
    8,930.84x = 13,392.36 × 3,933.08
  4. Step 4: Simplify right side
    8,930.84x = 52,673,223.27
  5. Step 5: Solve for x
    x = 52,673,223.27/8,930.84
  6. Step 6: Final answer
    x = 5,897.90

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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.