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Finding the Fourth Proportional to 19,507.23, 26,919.96 and 11,011.14

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Solution

The fourth proportional to 19,507.23, 26,919.96 and 11,011.14 is: 15,195.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,507.23 : 26,919.96 = 11,011.14 : x
  2. Step 2: Convert to fraction form
    19,507.23/26,919.96 = 11,011.14/x
  3. Step 3: Cross multiply
    19,507.23x = 26,919.96 × 11,011.14
  4. Step 4: Simplify right side
    19,507.23x = 296,419,448.35
  5. Step 5: Solve for x
    x = 296,419,448.35/19,507.23
  6. Step 6: Final answer
    x = 15,195.36

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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.