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Finding the Fourth Proportional to 19,505.10, 26,917.03 and 11,009.01

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Solution

The fourth proportional to 19,505.10, 26,917.03 and 11,009.01 is: 15,192.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.10 : 26,917.03 = 11,009.01 : x
  2. Step 2: Convert to fraction form
    19,505.10/26,917.03 = 11,009.01/x
  3. Step 3: Cross multiply
    19,505.10x = 26,917.03 × 11,009.01
  4. Step 4: Simplify right side
    19,505.10x = 296,329,852.44
  5. Step 5: Solve for x
    x = 296,329,852.44/19,505.10
  6. Step 6: Final answer
    x = 15,192.43

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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.