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Finding the Fourth Proportional to 29,958.80, 44,938.20 and 20,627.60

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Solution

The fourth proportional to 29,958.80, 44,938.20 and 20,627.60 is: 30,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,958.80 : 44,938.20 = 20,627.60 : x
  2. Step 2: Convert to fraction form
    29,958.80/44,938.20 = 20,627.60/x
  3. Step 3: Cross multiply
    29,958.80x = 44,938.20 × 20,627.60
  4. Step 4: Simplify right side
    29,958.80x = 926,967,214.32
  5. Step 5: Solve for x
    x = 926,967,214.32/29,958.80
  6. Step 6: Final answer
    x = 30,941.40

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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.