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Finding the Fourth Proportional to 40,706.99, 61,069.26 and 12,626.49

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Solution

The fourth proportional to 40,706.99, 61,069.26 and 12,626.49 is: 18,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,706.99 : 61,069.26 = 12,626.49 : x
  2. Step 2: Convert to fraction form
    40,706.99/61,069.26 = 12,626.49/x
  3. Step 3: Cross multiply
    40,706.99x = 61,069.26 × 12,626.49
  4. Step 4: Simplify right side
    40,706.99x = 771,090,400.70
  5. Step 5: Solve for x
    x = 771,090,400.70/40,706.99
  6. Step 6: Final answer
    x = 18,942.46

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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.