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Finding the Fourth Proportional to 1,702.07, 2,550.96 and 727.02

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Solution

The fourth proportional to 1,702.07, 2,550.96 and 727.02 is: 1,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702.07 : 2,550.96 = 727.02 : x
  2. Step 2: Convert to fraction form
    1,702.07/2,550.96 = 727.02/x
  3. Step 3: Cross multiply
    1,702.07x = 2,550.96 × 727.02
  4. Step 4: Simplify right side
    1,702.07x = 1,854,598.94
  5. Step 5: Solve for x
    x = 1,854,598.94/1,702.07
  6. Step 6: Final answer
    x = 1,089.62

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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.