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Finding the Fourth Proportional to 7,752.94, 11,629.80 and 2,206.68

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Solution

The fourth proportional to 7,752.94, 11,629.80 and 2,206.68 is: 3,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.94 : 11,629.80 = 2,206.68 : x
  2. Step 2: Convert to fraction form
    7,752.94/11,629.80 = 2,206.68/x
  3. Step 3: Cross multiply
    7,752.94x = 11,629.80 × 2,206.68
  4. Step 4: Simplify right side
    7,752.94x = 25,663,214.94
  5. Step 5: Solve for x
    x = 25,663,214.94/7,752.94
  6. Step 6: Final answer
    x = 3,310.13

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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.