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Finding the Fourth Proportional to 13,483.98, 20,224.08 and 6,910.20

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Solution

The fourth proportional to 13,483.98, 20,224.08 and 6,910.20 is: 10,364.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.98 : 20,224.08 = 6,910.20 : x
  2. Step 2: Convert to fraction form
    13,483.98/20,224.08 = 6,910.20/x
  3. Step 3: Cross multiply
    13,483.98x = 20,224.08 × 6,910.20
  4. Step 4: Simplify right side
    13,483.98x = 139,752,437.62
  5. Step 5: Solve for x
    x = 139,752,437.62/13,483.98
  6. Step 6: Final answer
    x = 10,364.33

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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.