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Finding the Fourth Proportional to 19,486.02, 29,229.03 and 8,949.06

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Solution

The fourth proportional to 19,486.02, 29,229.03 and 8,949.06 is: 13,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,486.02 : 29,229.03 = 8,949.06 : x
  2. Step 2: Convert to fraction form
    19,486.02/29,229.03 = 8,949.06/x
  3. Step 3: Cross multiply
    19,486.02x = 29,229.03 × 8,949.06
  4. Step 4: Simplify right side
    19,486.02x = 261,572,343.21
  5. Step 5: Solve for x
    x = 261,572,343.21/19,486.02
  6. Step 6: Final answer
    x = 13,423.59

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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.