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Finding the Fourth Proportional to 1,509.54, 2,268.59 and 893.36

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Solution

The fourth proportional to 1,509.54, 2,268.59 and 893.36 is: 1,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509.54 : 2,268.59 = 893.36 : x
  2. Step 2: Convert to fraction form
    1,509.54/2,268.59 = 893.36/x
  3. Step 3: Cross multiply
    1,509.54x = 2,268.59 × 893.36
  4. Step 4: Simplify right side
    1,509.54x = 2,026,651.75
  5. Step 5: Solve for x
    x = 2,026,651.75/1,509.54
  6. Step 6: Final answer
    x = 1,342.56

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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.