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Finding the Fourth Proportional to 6,730.80, 10,089.99 and 3,612.99

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Solution

The fourth proportional to 6,730.80, 10,089.99 and 3,612.99 is: 5,416.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,730.80 : 10,089.99 = 3,612.99 : x
  2. Step 2: Convert to fraction form
    6,730.80/10,089.99 = 3,612.99/x
  3. Step 3: Cross multiply
    6,730.80x = 10,089.99 × 3,612.99
  4. Step 4: Simplify right side
    6,730.80x = 36,455,032.97
  5. Step 5: Solve for x
    x = 36,455,032.97/6,730.80
  6. Step 6: Final answer
    x = 5,416.15

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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.