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Finding the Fourth Proportional to 9,239.76, 13,860.36 and 3,396.36

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Solution

The fourth proportional to 9,239.76, 13,860.36 and 3,396.36 is: 5,094.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.76 : 13,860.36 = 3,396.36 : x
  2. Step 2: Convert to fraction form
    9,239.76/13,860.36 = 3,396.36/x
  3. Step 3: Cross multiply
    9,239.76x = 13,860.36 × 3,396.36
  4. Step 4: Simplify right side
    9,239.76x = 47,074,772.29
  5. Step 5: Solve for x
    x = 47,074,772.29/9,239.76
  6. Step 6: Final answer
    x = 5,094.80

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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.