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Finding the Fourth Proportional to 5,374.90, 8,061.96 and 1,676.77

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Solution

The fourth proportional to 5,374.90, 8,061.96 and 1,676.77 is: 2,515.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,374.90 : 8,061.96 = 1,676.77 : x
  2. Step 2: Convert to fraction form
    5,374.90/8,061.96 = 1,676.77/x
  3. Step 3: Cross multiply
    5,374.90x = 8,061.96 × 1,676.77
  4. Step 4: Simplify right side
    5,374.90x = 13,518,012.36
  5. Step 5: Solve for x
    x = 13,518,012.36/5,374.90
  6. Step 6: Final answer
    x = 2,515.03

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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.