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Finding the Fourth Proportional to 17,893.68, 26,828.28 and 9,111.60

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Solution

The fourth proportional to 17,893.68, 26,828.28 and 9,111.60 is: 13,661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,893.68 : 26,828.28 = 9,111.60 : x
  2. Step 2: Convert to fraction form
    17,893.68/26,828.28 = 9,111.60/x
  3. Step 3: Cross multiply
    17,893.68x = 26,828.28 × 9,111.60
  4. Step 4: Simplify right side
    17,893.68x = 244,448,556.05
  5. Step 5: Solve for x
    x = 244,448,556.05/17,893.68
  6. Step 6: Final answer
    x = 13,661.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.