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Finding the Fourth Proportional to 2,907.16, 4,003.14 and 2,629.32

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Solution

The fourth proportional to 2,907.16, 4,003.14 and 2,629.32 is: 3,620.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.16 : 4,003.14 = 2,629.32 : x
  2. Step 2: Convert to fraction form
    2,907.16/4,003.14 = 2,629.32/x
  3. Step 3: Cross multiply
    2,907.16x = 4,003.14 × 2,629.32
  4. Step 4: Simplify right side
    2,907.16x = 10,525,536.06
  5. Step 5: Solve for x
    x = 10,525,536.06/2,907.16
  6. Step 6: Final answer
    x = 3,620.56

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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.