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Finding the Fourth Proportional to 23,819.40, 35,712.90 and 11,345.40

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Solution

The fourth proportional to 23,819.40, 35,712.90 and 11,345.40 is: 17,010.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,819.40 : 35,712.90 = 11,345.40 : x
  2. Step 2: Convert to fraction form
    23,819.40/35,712.90 = 11,345.40/x
  3. Step 3: Cross multiply
    23,819.40x = 35,712.90 × 11,345.40
  4. Step 4: Simplify right side
    23,819.40x = 405,177,135.66
  5. Step 5: Solve for x
    x = 405,177,135.66/23,819.40
  6. Step 6: Final answer
    x = 17,010.38

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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.