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Finding the Fourth Proportional to 8,676.98, 13,015.46 and 2,103.16

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Solution

The fourth proportional to 8,676.98, 13,015.46 and 2,103.16 is: 3,154.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.98 : 13,015.46 = 2,103.16 : x
  2. Step 2: Convert to fraction form
    8,676.98/13,015.46 = 2,103.16/x
  3. Step 3: Cross multiply
    8,676.98x = 13,015.46 × 2,103.16
  4. Step 4: Simplify right side
    8,676.98x = 27,373,600.11
  5. Step 5: Solve for x
    x = 27,373,600.11/8,676.98
  6. Step 6: Final answer
    x = 3,154.74

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1.5x scale

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.