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Finding the Fourth Proportional to 7,676.10, 11,520.90 and 4,552.20

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Solution

The fourth proportional to 7,676.10, 11,520.90 and 4,552.20 is: 6,832.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.10 : 11,520.90 = 4,552.20 : x
  2. Step 2: Convert to fraction form
    7,676.10/11,520.90 = 4,552.20/x
  3. Step 3: Cross multiply
    7,676.10x = 11,520.90 × 4,552.20
  4. Step 4: Simplify right side
    7,676.10x = 52,445,440.98
  5. Step 5: Solve for x
    x = 52,445,440.98/7,676.10
  6. Step 6: Final answer
    x = 6,832.30

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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.