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Finding the Fourth Proportional to 57,311.64, 85,969.67 and 27,310.41

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Solution

The fourth proportional to 57,311.64, 85,969.67 and 27,310.41 is: 40,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,311.64 : 85,969.67 = 27,310.41 : x
  2. Step 2: Convert to fraction form
    57,311.64/85,969.67 = 27,310.41/x
  3. Step 3: Cross multiply
    57,311.64x = 85,969.67 × 27,310.41
  4. Step 4: Simplify right side
    57,311.64x = 2,347,866,798.71
  5. Step 5: Solve for x
    x = 2,347,866,798.71/57,311.64
  6. Step 6: Final answer
    x = 40,966.67

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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.