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Finding the Fourth Proportional to 13,483.00, 20,221.25 and 6,905.80

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Solution

The fourth proportional to 13,483.00, 20,221.25 and 6,905.80 is: 10,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.00 : 20,221.25 = 6,905.80 : x
  2. Step 2: Convert to fraction form
    13,483.00/20,221.25 = 6,905.80/x
  3. Step 3: Cross multiply
    13,483.00x = 20,221.25 × 6,905.80
  4. Step 4: Simplify right side
    13,483.00x = 139,643,874.96
  5. Step 5: Solve for x
    x = 139,643,874.96/13,483.00
  6. Step 6: Final answer
    x = 10,357.03

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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.