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Finding the Fourth Proportional to 2,533.64, 3,801.56 and 891.36

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Solution

The fourth proportional to 2,533.64, 3,801.56 and 891.36 is: 1,337.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,533.64 : 3,801.56 = 891.36 : x
  2. Step 2: Convert to fraction form
    2,533.64/3,801.56 = 891.36/x
  3. Step 3: Cross multiply
    2,533.64x = 3,801.56 × 891.36
  4. Step 4: Simplify right side
    2,533.64x = 3,388,554.06
  5. Step 5: Solve for x
    x = 3,388,554.06/2,533.64
  6. Step 6: Final answer
    x = 1,337.43

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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.