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Finding the Fourth Proportional to 17,212.70, 23,719.02 and 12,736.64

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Solution

The fourth proportional to 17,212.70, 23,719.02 and 12,736.64 is: 17,551.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,212.70 : 23,719.02 = 12,736.64 : x
  2. Step 2: Convert to fraction form
    17,212.70/23,719.02 = 12,736.64/x
  3. Step 3: Cross multiply
    17,212.70x = 23,719.02 × 12,736.64
  4. Step 4: Simplify right side
    17,212.70x = 302,100,618.89
  5. Step 5: Solve for x
    x = 302,100,618.89/17,212.70
  6. Step 6: Final answer
    x = 17,551.03

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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.