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Finding the Fourth Proportional to 34,137.80, 51,206.70 and 33,919.40

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Solution

The fourth proportional to 34,137.80, 51,206.70 and 33,919.40 is: 50,879.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,137.80 : 51,206.70 = 33,919.40 : x
  2. Step 2: Convert to fraction form
    34,137.80/51,206.70 = 33,919.40/x
  3. Step 3: Cross multiply
    34,137.80x = 51,206.70 × 33,919.40
  4. Step 4: Simplify right side
    34,137.80x = 1,736,900,539.98
  5. Step 5: Solve for x
    x = 1,736,900,539.98/34,137.80
  6. Step 6: Final answer
    x = 50,879.10

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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.