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Finding the Fourth Proportional to 6,909.67, 9,535.53 and 3,766.06

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Solution

The fourth proportional to 6,909.67, 9,535.53 and 3,766.06 is: 5,197.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.67 : 9,535.53 = 3,766.06 : x
  2. Step 2: Convert to fraction form
    6,909.67/9,535.53 = 3,766.06/x
  3. Step 3: Cross multiply
    6,909.67x = 9,535.53 × 3,766.06
  4. Step 4: Simplify right side
    6,909.67x = 35,911,378.11
  5. Step 5: Solve for x
    x = 35,911,378.11/6,909.67
  6. Step 6: Final answer
    x = 5,197.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.