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Finding the Fourth Proportional to 2,768.52, 4,152.80 and 1,036.76

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Solution

The fourth proportional to 2,768.52, 4,152.80 and 1,036.76 is: 1,555.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.52 : 4,152.80 = 1,036.76 : x
  2. Step 2: Convert to fraction form
    2,768.52/4,152.80 = 1,036.76/x
  3. Step 3: Cross multiply
    2,768.52x = 4,152.80 × 1,036.76
  4. Step 4: Simplify right side
    2,768.52x = 4,305,456.93
  5. Step 5: Solve for x
    x = 4,305,456.93/2,768.52
  6. Step 6: Final answer
    x = 1,555.15

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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.