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Finding the Fourth Proportional to 12,401.62, 18,602.53 and 3,636.68

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Solution

The fourth proportional to 12,401.62, 18,602.53 and 3,636.68 is: 5,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401.62 : 18,602.53 = 3,636.68 : x
  2. Step 2: Convert to fraction form
    12,401.62/18,602.53 = 3,636.68/x
  3. Step 3: Cross multiply
    12,401.62x = 18,602.53 × 3,636.68
  4. Step 4: Simplify right side
    12,401.62x = 67,651,346.70
  5. Step 5: Solve for x
    x = 67,651,346.70/12,401.62
  6. Step 6: Final answer
    x = 5,455.04

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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.