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Finding the Fourth Proportional to 8,913.96, 13,370.85 and 2,340.03

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Solution

The fourth proportional to 8,913.96, 13,370.85 and 2,340.03 is: 3,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.96 : 13,370.85 = 2,340.03 : x
  2. Step 2: Convert to fraction form
    8,913.96/13,370.85 = 2,340.03/x
  3. Step 3: Cross multiply
    8,913.96x = 13,370.85 × 2,340.03
  4. Step 4: Simplify right side
    8,913.96x = 31,288,190.13
  5. Step 5: Solve for x
    x = 31,288,190.13/8,913.96
  6. Step 6: Final answer
    x = 3,510.02

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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.