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Finding the Fourth Proportional to 5,620.93, 7,756.91 and 3,102.99

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Solution

The fourth proportional to 5,620.93, 7,756.91 and 3,102.99 is: 4,282.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.93 : 7,756.91 = 3,102.99 : x
  2. Step 2: Convert to fraction form
    5,620.93/7,756.91 = 3,102.99/x
  3. Step 3: Cross multiply
    5,620.93x = 7,756.91 × 3,102.99
  4. Step 4: Simplify right side
    5,620.93x = 24,069,625.80
  5. Step 5: Solve for x
    x = 24,069,625.80/5,620.93
  6. Step 6: Final answer
    x = 4,282.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.