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Finding the Third Proportional to 835 and 1,556

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Solution

The third proportional to 835 and 1,556 is: 2,899.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    835 : 1,556 = 1,556 : x
  2. Step 2: Convert to fraction form
    835/1,556 = 1,556/x
  3. Step 3: Cross multiply
    835x = 1,556 × 1,556
  4. Step 4: Simplify right side
    835x = 2,421,136
  5. Step 5: Solve for x
    x = 2,421,136/835
  6. Step 6: Final answer
    x = 2,899.56

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.