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Finding the Fourth Proportional to 2,647.20, 3,653.20 and 1,468.32

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Solution

The fourth proportional to 2,647.20, 3,653.20 and 1,468.32 is: 2,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.20 : 3,653.20 = 1,468.32 : x
  2. Step 2: Convert to fraction form
    2,647.20/3,653.20 = 1,468.32/x
  3. Step 3: Cross multiply
    2,647.20x = 3,653.20 × 1,468.32
  4. Step 4: Simplify right side
    2,647.20x = 5,364,066.62
  5. Step 5: Solve for x
    x = 5,364,066.62/2,647.20
  6. Step 6: Final answer
    x = 2,026.32

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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.