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Finding the Fourth Proportional to 18,410.40, 27,610.32 and 9,044.64

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Solution

The fourth proportional to 18,410.40, 27,610.32 and 9,044.64 is: 13,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.40 : 27,610.32 = 9,044.64 : x
  2. Step 2: Convert to fraction form
    18,410.40/27,610.32 = 9,044.64/x
  3. Step 3: Cross multiply
    18,410.40x = 27,610.32 × 9,044.64
  4. Step 4: Simplify right side
    18,410.40x = 249,725,404.68
  5. Step 5: Solve for x
    x = 249,725,404.68/18,410.40
  6. Step 6: Final answer
    x = 13,564.37

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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.