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Finding the Fourth Proportional to 8,950.12, 13,421.98 and 3,401.99

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Solution

The fourth proportional to 8,950.12, 13,421.98 and 3,401.99 is: 5,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,950.12 : 13,421.98 = 3,401.99 : x
  2. Step 2: Convert to fraction form
    8,950.12/13,421.98 = 3,401.99/x
  3. Step 3: Cross multiply
    8,950.12x = 13,421.98 × 3,401.99
  4. Step 4: Simplify right side
    8,950.12x = 45,661,441.74
  5. Step 5: Solve for x
    x = 45,661,441.74/8,950.12
  6. Step 6: Final answer
    x = 5,101.77

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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.