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Finding the Fourth Proportional to 7,751.99, 11,629.29 and 3,590.30

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Solution

The fourth proportional to 7,751.99, 11,629.29 and 3,590.30 is: 5,386.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.99 : 11,629.29 = 3,590.30 : x
  2. Step 2: Convert to fraction form
    7,751.99/11,629.29 = 3,590.30/x
  3. Step 3: Cross multiply
    7,751.99x = 11,629.29 × 3,590.30
  4. Step 4: Simplify right side
    7,751.99x = 41,752,639.89
  5. Step 5: Solve for x
    x = 41,752,639.89/7,751.99
  6. Step 6: Final answer
    x = 5,386.05

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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.