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Finding the Fourth Proportional to 3,672.12, 5,504.94 and 1,362

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Solution

The fourth proportional to 3,672.12, 5,504.94 and 1,362 is: 2,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672.12 : 5,504.94 = 1,362 : x
  2. Step 2: Convert to fraction form
    3,672.12/5,504.94 = 1,362/x
  3. Step 3: Cross multiply
    3,672.12x = 5,504.94 × 1,362
  4. Step 4: Simplify right side
    3,672.12x = 7,497,728.28
  5. Step 5: Solve for x
    x = 7,497,728.28/3,672.12
  6. Step 6: Final answer
    x = 2,041.80

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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.