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Finding the Fourth Proportional to 5,676.39, 8,492.72 and 3,818.66

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Solution

The fourth proportional to 5,676.39, 8,492.72 and 3,818.66 is: 5,713.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.39 : 8,492.72 = 3,818.66 : x
  2. Step 2: Convert to fraction form
    5,676.39/8,492.72 = 3,818.66/x
  3. Step 3: Cross multiply
    5,676.39x = 8,492.72 × 3,818.66
  4. Step 4: Simplify right side
    5,676.39x = 32,430,748.60
  5. Step 5: Solve for x
    x = 32,430,748.60/5,676.39
  6. Step 6: Final answer
    x = 5,713.27

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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.