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Finding the Fourth Proportional to 2,916.09, 4,375.22 and 1,356.93

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Solution

The fourth proportional to 2,916.09, 4,375.22 and 1,356.93 is: 2,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.09 : 4,375.22 = 1,356.93 : x
  2. Step 2: Convert to fraction form
    2,916.09/4,375.22 = 1,356.93/x
  3. Step 3: Cross multiply
    2,916.09x = 4,375.22 × 1,356.93
  4. Step 4: Simplify right side
    2,916.09x = 5,936,860.49
  5. Step 5: Solve for x
    x = 5,936,860.49/2,916.09
  6. Step 6: Final answer
    x = 2,035.90

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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.