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Finding the Fourth Proportional to 8,676.95, 13,022.11 and 4,518

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Solution

The fourth proportional to 8,676.95, 13,022.11 and 4,518 is: 6,780.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.95 : 13,022.11 = 4,518 : x
  2. Step 2: Convert to fraction form
    8,676.95/13,022.11 = 4,518/x
  3. Step 3: Cross multiply
    8,676.95x = 13,022.11 × 4,518
  4. Step 4: Simplify right side
    8,676.95x = 58,833,870.39
  5. Step 5: Solve for x
    x = 58,833,870.39/8,676.95
  6. Step 6: Final answer
    x = 6,780.48

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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.