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Finding the Fourth Proportional to 17,926.14, 26,889.12 and 6,239.28

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Solution

The fourth proportional to 17,926.14, 26,889.12 and 6,239.28 is: 9,358.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,926.14 : 26,889.12 = 6,239.28 : x
  2. Step 2: Convert to fraction form
    17,926.14/26,889.12 = 6,239.28/x
  3. Step 3: Cross multiply
    17,926.14x = 26,889.12 × 6,239.28
  4. Step 4: Simplify right side
    17,926.14x = 167,768,748.63
  5. Step 5: Solve for x
    x = 167,768,748.63/17,926.14
  6. Step 6: Final answer
    x = 9,358.89

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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.