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Finding the Fourth Proportional to 19,402.40, 29,079.25 and 8,296.03

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Solution

The fourth proportional to 19,402.40, 29,079.25 and 8,296.03 is: 12,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,402.40 : 29,079.25 = 8,296.03 : x
  2. Step 2: Convert to fraction form
    19,402.40/29,079.25 = 8,296.03/x
  3. Step 3: Cross multiply
    19,402.40x = 29,079.25 × 8,296.03
  4. Step 4: Simplify right side
    19,402.40x = 241,242,330.38
  5. Step 5: Solve for x
    x = 241,242,330.38/19,402.40
  6. Step 6: Final answer
    x = 12,433.63

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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.