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Finding the Fourth Proportional to 57,065.60, 85,700.80 and 41,500.80

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Solution

The fourth proportional to 57,065.60, 85,700.80 and 41,500.80 is: 62,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,065.60 : 85,700.80 = 41,500.80 : x
  2. Step 2: Convert to fraction form
    57,065.60/85,700.80 = 41,500.80/x
  3. Step 3: Cross multiply
    57,065.60x = 85,700.80 × 41,500.80
  4. Step 4: Simplify right side
    57,065.60x = 3,556,651,760.64
  5. Step 5: Solve for x
    x = 3,556,651,760.64/57,065.60
  6. Step 6: Final answer
    x = 62,325.67

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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.