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Finding the Fourth Proportional to 13,632.84, 20,446.94 and 4,398.84

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Solution

The fourth proportional to 13,632.84, 20,446.94 and 4,398.84 is: 6,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.84 : 20,446.94 = 4,398.84 : x
  2. Step 2: Convert to fraction form
    13,632.84/20,446.94 = 4,398.84/x
  3. Step 3: Cross multiply
    13,632.84x = 20,446.94 × 4,398.84
  4. Step 4: Simplify right side
    13,632.84x = 89,942,817.55
  5. Step 5: Solve for x
    x = 89,942,817.55/13,632.84
  6. Step 6: Final answer
    x = 6,597.51

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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.