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Finding the Fourth Proportional to 43,349.80, 65,040.90 and 17,072.86

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Solution

The fourth proportional to 43,349.80, 65,040.90 and 17,072.86 is: 25,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,349.80 : 65,040.90 = 17,072.86 : x
  2. Step 2: Convert to fraction form
    43,349.80/65,040.90 = 17,072.86/x
  3. Step 3: Cross multiply
    43,349.80x = 65,040.90 × 17,072.86
  4. Step 4: Simplify right side
    43,349.80x = 1,110,434,179.97
  5. Step 5: Solve for x
    x = 1,110,434,179.97/43,349.80
  6. Step 6: Final answer
    x = 25,615.67

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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.