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Finding the Fourth Proportional to 13,356, 20,034 and 3,628

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Solution

The fourth proportional to 13,356, 20,034 and 3,628 is: 5,442

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356 : 20,034 = 3,628 : x
  2. Step 2: Convert to fraction form
    13,356/20,034 = 3,628/x
  3. Step 3: Cross multiply
    13,356x = 20,034 × 3,628
  4. Step 4: Simplify right side
    13,356x = 72,683,352
  5. Step 5: Solve for x
    x = 72,683,352/13,356
  6. Step 6: Final answer
    x = 5,442

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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.