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Finding the Fourth Proportional to 19,466.70, 29,200.05 and 13,245.90

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Solution

The fourth proportional to 19,466.70, 29,200.05 and 13,245.90 is: 19,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,466.70 : 29,200.05 = 13,245.90 : x
  2. Step 2: Convert to fraction form
    19,466.70/29,200.05 = 13,245.90/x
  3. Step 3: Cross multiply
    19,466.70x = 29,200.05 × 13,245.90
  4. Step 4: Simplify right side
    19,466.70x = 386,780,942.30
  5. Step 5: Solve for x
    x = 386,780,942.30/19,466.70
  6. Step 6: Final answer
    x = 19,868.85

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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.