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Finding the Fourth Proportional to 17,914.80, 26,862.60 and 7,514.80

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Solution

The fourth proportional to 17,914.80, 26,862.60 and 7,514.80 is: 11,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,914.80 : 26,862.60 = 7,514.80 : x
  2. Step 2: Convert to fraction form
    17,914.80/26,862.60 = 7,514.80/x
  3. Step 3: Cross multiply
    17,914.80x = 26,862.60 × 7,514.80
  4. Step 4: Simplify right side
    17,914.80x = 201,867,066.48
  5. Step 5: Solve for x
    x = 201,867,066.48/17,914.80
  6. Step 6: Final answer
    x = 11,268.17

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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.