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Finding the Fourth Proportional to 34,219.40, 51,357.90 and 16,704.20

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Solution

The fourth proportional to 34,219.40, 51,357.90 and 16,704.20 is: 25,070.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,219.40 : 51,357.90 = 16,704.20 : x
  2. Step 2: Convert to fraction form
    34,219.40/51,357.90 = 16,704.20/x
  3. Step 3: Cross multiply
    34,219.40x = 51,357.90 × 16,704.20
  4. Step 4: Simplify right side
    34,219.40x = 857,892,633.18
  5. Step 5: Solve for x
    x = 857,892,633.18/34,219.40
  6. Step 6: Final answer
    x = 25,070.36

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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.