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Finding the Fourth Proportional to 6,866.87, 10,300.30 and 3,168

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Solution

The fourth proportional to 6,866.87, 10,300.30 and 3,168 is: 4,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.87 : 10,300.30 = 3,168 : x
  2. Step 2: Convert to fraction form
    6,866.87/10,300.30 = 3,168/x
  3. Step 3: Cross multiply
    6,866.87x = 10,300.30 × 3,168
  4. Step 4: Simplify right side
    6,866.87x = 32,631,334.56
  5. Step 5: Solve for x
    x = 32,631,334.56/6,866.87
  6. Step 6: Final answer
    x = 4,752.00

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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.