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Finding the Fourth Proportional to 1,736.64, 2,396.62 and 1,038.42

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Solution

The fourth proportional to 1,736.64, 2,396.62 and 1,038.42 is: 1,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,736.64 : 2,396.62 = 1,038.42 : x
  2. Step 2: Convert to fraction form
    1,736.64/2,396.62 = 1,038.42/x
  3. Step 3: Cross multiply
    1,736.64x = 2,396.62 × 1,038.42
  4. Step 4: Simplify right side
    1,736.64x = 2,488,698.14
  5. Step 5: Solve for x
    x = 2,488,698.14/1,736.64
  6. Step 6: Final answer
    x = 1,433.05

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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.