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Finding the Fourth Proportional to 3,552.88, 5,330 and 1,702.74

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Solution

The fourth proportional to 3,552.88, 5,330 and 1,702.74 is: 2,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.88 : 5,330 = 1,702.74 : x
  2. Step 2: Convert to fraction form
    3,552.88/5,330 = 1,702.74/x
  3. Step 3: Cross multiply
    3,552.88x = 5,330 × 1,702.74
  4. Step 4: Simplify right side
    3,552.88x = 9,075,604.20
  5. Step 5: Solve for x
    x = 9,075,604.20/3,552.88
  6. Step 6: Final answer
    x = 2,554.44

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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.