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Finding the Fourth Proportional to 13,636.84, 20,452.94 and 4,402.84

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Solution

The fourth proportional to 13,636.84, 20,452.94 and 4,402.84 is: 6,603.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.84 : 20,452.94 = 4,402.84 : x
  2. Step 2: Convert to fraction form
    13,636.84/20,452.94 = 4,402.84/x
  3. Step 3: Cross multiply
    13,636.84x = 20,452.94 × 4,402.84
  4. Step 4: Simplify right side
    13,636.84x = 90,051,022.35
  5. Step 5: Solve for x
    x = 90,051,022.35/13,636.84
  6. Step 6: Final answer
    x = 6,603.51

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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.