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Finding the Fourth Proportional to 4,915.67, 7,359.37 and 4,569.68

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Solution

The fourth proportional to 4,915.67, 7,359.37 and 4,569.68 is: 6,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.67 : 7,359.37 = 4,569.68 : x
  2. Step 2: Convert to fraction form
    4,915.67/7,359.37 = 4,569.68/x
  3. Step 3: Cross multiply
    4,915.67x = 7,359.37 × 4,569.68
  4. Step 4: Simplify right side
    4,915.67x = 33,629,972.88
  5. Step 5: Solve for x
    x = 33,629,972.88/4,915.67
  6. Step 6: Final answer
    x = 6,841.39

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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.