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Finding the Fourth Proportional to 1,264.44, 1,893.02 and 852.15

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Solution

The fourth proportional to 1,264.44, 1,893.02 and 852.15 is: 1,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.44 : 1,893.02 = 852.15 : x
  2. Step 2: Convert to fraction form
    1,264.44/1,893.02 = 852.15/x
  3. Step 3: Cross multiply
    1,264.44x = 1,893.02 × 852.15
  4. Step 4: Simplify right side
    1,264.44x = 1,613,132.73
  5. Step 5: Solve for x
    x = 1,613,132.73/1,264.44
  6. Step 6: Final answer
    x = 1,275.77

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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.