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Finding the Fourth Proportional to 2,037, 2,811.06 and 1,721

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Solution

The fourth proportional to 2,037, 2,811.06 and 1,721 is: 2,374.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037 : 2,811.06 = 1,721 : x
  2. Step 2: Convert to fraction form
    2,037/2,811.06 = 1,721/x
  3. Step 3: Cross multiply
    2,037x = 2,811.06 × 1,721
  4. Step 4: Simplify right side
    2,037x = 4,837,834.26
  5. Step 5: Solve for x
    x = 4,837,834.26/2,037
  6. Step 6: Final answer
    x = 2,374.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.