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Finding the Fourth Proportional to 19,396.92, 26,765.72 and 13,022.22

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Solution

The fourth proportional to 19,396.92, 26,765.72 and 13,022.22 is: 17,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.92 : 26,765.72 = 13,022.22 : x
  2. Step 2: Convert to fraction form
    19,396.92/26,765.72 = 13,022.22/x
  3. Step 3: Cross multiply
    19,396.92x = 26,765.72 × 13,022.22
  4. Step 4: Simplify right side
    19,396.92x = 348,549,029.19
  5. Step 5: Solve for x
    x = 348,549,029.19/19,396.92
  6. Step 6: Final answer
    x = 17,969.30

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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.