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Finding the Fourth Proportional to 8,676.90, 13,017.40 and 3,746.59

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Solution

The fourth proportional to 8,676.90, 13,017.40 and 3,746.59 is: 5,620.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.90 : 13,017.40 = 3,746.59 : x
  2. Step 2: Convert to fraction form
    8,676.90/13,017.40 = 3,746.59/x
  3. Step 3: Cross multiply
    8,676.90x = 13,017.40 × 3,746.59
  4. Step 4: Simplify right side
    8,676.90x = 48,770,818.76
  5. Step 5: Solve for x
    x = 48,770,818.76/8,676.90
  6. Step 6: Final answer
    x = 5,620.77

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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.