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Finding the Fourth Proportional to 8,938.92, 13,393.81 and 4,550.34

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Solution

The fourth proportional to 8,938.92, 13,393.81 and 4,550.34 is: 6,818.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.92 : 13,393.81 = 4,550.34 : x
  2. Step 2: Convert to fraction form
    8,938.92/13,393.81 = 4,550.34/x
  3. Step 3: Cross multiply
    8,938.92x = 13,393.81 × 4,550.34
  4. Step 4: Simplify right side
    8,938.92x = 60,946,419.71
  5. Step 5: Solve for x
    x = 60,946,419.71/8,938.92
  6. Step 6: Final answer
    x = 6,818.09

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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.