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Finding the Fourth Proportional to 1,251.50, 1,875.02 and 1,067.02

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Solution

The fourth proportional to 1,251.50, 1,875.02 and 1,067.02 is: 1,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.50 : 1,875.02 = 1,067.02 : x
  2. Step 2: Convert to fraction form
    1,251.50/1,875.02 = 1,067.02/x
  3. Step 3: Cross multiply
    1,251.50x = 1,875.02 × 1,067.02
  4. Step 4: Simplify right side
    1,251.50x = 2,000,693.37
  5. Step 5: Solve for x
    x = 2,000,693.37/1,251.50
  6. Step 6: Final answer
    x = 1,598.64

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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.