Home / 19,696.05-27,189.74-12,626.51

Finding the Fourth Proportional to 19,696.05, 27,189.74 and 12,626.51

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Solution

The fourth proportional to 19,696.05, 27,189.74 and 12,626.51 is: 17,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,696.05 : 27,189.74 = 12,626.51 : x
  2. Step 2: Convert to fraction form
    19,696.05/27,189.74 = 12,626.51/x
  3. Step 3: Cross multiply
    19,696.05x = 27,189.74 × 12,626.51
  4. Step 4: Simplify right side
    19,696.05x = 343,311,419.62
  5. Step 5: Solve for x
    x = 343,311,419.62/19,696.05
  6. Step 6: Final answer
    x = 17,430.47

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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.