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Finding the Fourth Proportional to 1,792.67, 2,686.64 and 1,675.76

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Solution

The fourth proportional to 1,792.67, 2,686.64 and 1,675.76 is: 2,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.67 : 2,686.64 = 1,675.76 : x
  2. Step 2: Convert to fraction form
    1,792.67/2,686.64 = 1,675.76/x
  3. Step 3: Cross multiply
    1,792.67x = 2,686.64 × 1,675.76
  4. Step 4: Simplify right side
    1,792.67x = 4,502,142.03
  5. Step 5: Solve for x
    x = 4,502,142.03/1,792.67
  6. Step 6: Final answer
    x = 2,511.42

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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.