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Finding the Fourth Proportional to 43,751.70, 65,627.55 and 20,059.20

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Solution

The fourth proportional to 43,751.70, 65,627.55 and 20,059.20 is: 30,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,751.70 : 65,627.55 = 20,059.20 : x
  2. Step 2: Convert to fraction form
    43,751.70/65,627.55 = 20,059.20/x
  3. Step 3: Cross multiply
    43,751.70x = 65,627.55 × 20,059.20
  4. Step 4: Simplify right side
    43,751.70x = 1,316,436,150.96
  5. Step 5: Solve for x
    x = 1,316,436,150.96/43,751.70
  6. Step 6: Final answer
    x = 30,088.80

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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.