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Finding the Fourth Proportional to 19,533.70, 26,960.70 and 12,736.22

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Solution

The fourth proportional to 19,533.70, 26,960.70 and 12,736.22 is: 17,578.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,533.70 : 26,960.70 = 12,736.22 : x
  2. Step 2: Convert to fraction form
    19,533.70/26,960.70 = 12,736.22/x
  3. Step 3: Cross multiply
    19,533.70x = 26,960.70 × 12,736.22
  4. Step 4: Simplify right side
    19,533.70x = 343,377,406.55
  5. Step 5: Solve for x
    x = 343,377,406.55/19,533.70
  6. Step 6: Final answer
    x = 17,578.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.