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Finding the Fourth Proportional to 45,907.70, 68,861.55 and 40,367.30

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Solution

The fourth proportional to 45,907.70, 68,861.55 and 40,367.30 is: 60,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,907.70 : 68,861.55 = 40,367.30 : x
  2. Step 2: Convert to fraction form
    45,907.70/68,861.55 = 40,367.30/x
  3. Step 3: Cross multiply
    45,907.70x = 68,861.55 × 40,367.30
  4. Step 4: Simplify right side
    45,907.70x = 2,779,754,847.32
  5. Step 5: Solve for x
    x = 2,779,754,847.32/45,907.70
  6. Step 6: Final answer
    x = 60,550.95

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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.