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Finding the Fourth Proportional to 2,322, 3,203.96 and 1,535.64

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Solution

The fourth proportional to 2,322, 3,203.96 and 1,535.64 is: 2,118.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,322 : 3,203.96 = 1,535.64 : x
  2. Step 2: Convert to fraction form
    2,322/3,203.96 = 1,535.64/x
  3. Step 3: Cross multiply
    2,322x = 3,203.96 × 1,535.64
  4. Step 4: Simplify right side
    2,322x = 4,920,129.13
  5. Step 5: Solve for x
    x = 4,920,129.13/2,322
  6. Step 6: Final answer
    x = 2,118.92

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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.