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Finding the Fourth Proportional to 25,793.64, 35,615.70 and 20,741.67

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Solution

The fourth proportional to 25,793.64, 35,615.70 and 20,741.67 is: 28,639.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,793.64 : 35,615.70 = 20,741.67 : x
  2. Step 2: Convert to fraction form
    25,793.64/35,615.70 = 20,741.67/x
  3. Step 3: Cross multiply
    25,793.64x = 35,615.70 × 20,741.67
  4. Step 4: Simplify right side
    25,793.64x = 738,729,096.22
  5. Step 5: Solve for x
    x = 738,729,096.22/25,793.64
  6. Step 6: Final answer
    x = 28,639.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.