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Finding the Fourth Proportional to 2,089.94, 3,134.88 and 702.98

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Solution

The fourth proportional to 2,089.94, 3,134.88 and 702.98 is: 1,054.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.94 : 3,134.88 = 702.98 : x
  2. Step 2: Convert to fraction form
    2,089.94/3,134.88 = 702.98/x
  3. Step 3: Cross multiply
    2,089.94x = 3,134.88 × 702.98
  4. Step 4: Simplify right side
    2,089.94x = 2,203,757.94
  5. Step 5: Solve for x
    x = 2,203,757.94/2,089.94
  6. Step 6: Final answer
    x = 1,054.46

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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.