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Finding the Fourth Proportional to 5,360.98, 8,035.98 and 2,072.80

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Solution

The fourth proportional to 5,360.98, 8,035.98 and 2,072.80 is: 3,107.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.98 : 8,035.98 = 2,072.80 : x
  2. Step 2: Convert to fraction form
    5,360.98/8,035.98 = 2,072.80/x
  3. Step 3: Cross multiply
    5,360.98x = 8,035.98 × 2,072.80
  4. Step 4: Simplify right side
    5,360.98x = 16,656,979.34
  5. Step 5: Solve for x
    x = 16,656,979.34/5,360.98
  6. Step 6: Final answer
    x = 3,107.08

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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.