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Finding the Fourth Proportional to 13,460.80, 20,181.60 and 6,059.20

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Solution

The fourth proportional to 13,460.80, 20,181.60 and 6,059.20 is: 9,084.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.80 : 20,181.60 = 6,059.20 : x
  2. Step 2: Convert to fraction form
    13,460.80/20,181.60 = 6,059.20/x
  3. Step 3: Cross multiply
    13,460.80x = 20,181.60 × 6,059.20
  4. Step 4: Simplify right side
    13,460.80x = 122,284,350.72
  5. Step 5: Solve for x
    x = 122,284,350.72/13,460.80
  6. Step 6: Final answer
    x = 9,084.48

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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.