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Finding the Fourth Proportional to 1,067.68, 1,594.40 and 1,013.01

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Solution

The fourth proportional to 1,067.68, 1,594.40 and 1,013.01 is: 1,512.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.68 : 1,594.40 = 1,013.01 : x
  2. Step 2: Convert to fraction form
    1,067.68/1,594.40 = 1,013.01/x
  3. Step 3: Cross multiply
    1,067.68x = 1,594.40 × 1,013.01
  4. Step 4: Simplify right side
    1,067.68x = 1,615,143.14
  5. Step 5: Solve for x
    x = 1,615,143.14/1,067.68
  6. Step 6: Final answer
    x = 1,512.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.