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Finding the Fourth Proportional to 29,968.80, 44,969.40 and 13,331.40

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Solution

The fourth proportional to 29,968.80, 44,969.40 and 13,331.40 is: 20,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,968.80 : 44,969.40 = 13,331.40 : x
  2. Step 2: Convert to fraction form
    29,968.80/44,969.40 = 13,331.40/x
  3. Step 3: Cross multiply
    29,968.80x = 44,969.40 × 13,331.40
  4. Step 4: Simplify right side
    29,968.80x = 599,505,059.16
  5. Step 5: Solve for x
    x = 599,505,059.16/29,968.80
  6. Step 6: Final answer
    x = 20,004.31

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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.