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Finding the Fourth Proportional to 34,672.50, 47,847.87 and 18,756.90

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Solution

The fourth proportional to 34,672.50, 47,847.87 and 18,756.90 is: 25,884.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,672.50 : 47,847.87 = 18,756.90 : x
  2. Step 2: Convert to fraction form
    34,672.50/47,847.87 = 18,756.90/x
  3. Step 3: Cross multiply
    34,672.50x = 47,847.87 × 18,756.90
  4. Step 4: Simplify right side
    34,672.50x = 897,477,712.80
  5. Step 5: Solve for x
    x = 897,477,712.80/34,672.50
  6. Step 6: Final answer
    x = 25,884.42

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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.