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Finding the Fourth Proportional to 29,310.84, 43,948.44 and 11,520.18

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Solution

The fourth proportional to 29,310.84, 43,948.44 and 11,520.18 is: 17,273.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,310.84 : 43,948.44 = 11,520.18 : x
  2. Step 2: Convert to fraction form
    29,310.84/43,948.44 = 11,520.18/x
  3. Step 3: Cross multiply
    29,310.84x = 43,948.44 × 11,520.18
  4. Step 4: Simplify right side
    29,310.84x = 506,293,939.52
  5. Step 5: Solve for x
    x = 506,293,939.52/29,310.84
  6. Step 6: Final answer
    x = 17,273.27

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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.