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Finding the Fourth Proportional to 1,160.52, 1,739.55 and 835.71

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Solution

The fourth proportional to 1,160.52, 1,739.55 and 835.71 is: 1,252.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.52 : 1,739.55 = 835.71 : x
  2. Step 2: Convert to fraction form
    1,160.52/1,739.55 = 835.71/x
  3. Step 3: Cross multiply
    1,160.52x = 1,739.55 × 835.71
  4. Step 4: Simplify right side
    1,160.52x = 1,453,759.33
  5. Step 5: Solve for x
    x = 1,453,759.33/1,160.52
  6. Step 6: Final answer
    x = 1,252.68

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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.