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Finding the Fourth Proportional to 8,676.55, 12,993.85 and 4,967.54

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Solution

The fourth proportional to 8,676.55, 12,993.85 and 4,967.54 is: 7,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.55 : 12,993.85 = 4,967.54 : x
  2. Step 2: Convert to fraction form
    8,676.55/12,993.85 = 4,967.54/x
  3. Step 3: Cross multiply
    8,676.55x = 12,993.85 × 4,967.54
  4. Step 4: Simplify right side
    8,676.55x = 64,547,469.63
  5. Step 5: Solve for x
    x = 64,547,469.63/8,676.55
  6. Step 6: Final answer
    x = 7,439.30

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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.