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Finding the Fourth Proportional to 8,401.79, 12,602.43 and 3,467.67

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Solution

The fourth proportional to 8,401.79, 12,602.43 and 3,467.67 is: 5,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401.79 : 12,602.43 = 3,467.67 : x
  2. Step 2: Convert to fraction form
    8,401.79/12,602.43 = 3,467.67/x
  3. Step 3: Cross multiply
    8,401.79x = 12,602.43 × 3,467.67
  4. Step 4: Simplify right side
    8,401.79x = 43,701,068.44
  5. Step 5: Solve for x
    x = 43,701,068.44/8,401.79
  6. Step 6: Final answer
    x = 5,201.40

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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.