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Finding the Fourth Proportional to 29,147.70, 43,721.55 and 26,912.10

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Solution

The fourth proportional to 29,147.70, 43,721.55 and 26,912.10 is: 40,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,147.70 : 43,721.55 = 26,912.10 : x
  2. Step 2: Convert to fraction form
    29,147.70/43,721.55 = 26,912.10/x
  3. Step 3: Cross multiply
    29,147.70x = 43,721.55 × 26,912.10
  4. Step 4: Simplify right side
    29,147.70x = 1,176,638,725.76
  5. Step 5: Solve for x
    x = 1,176,638,725.76/29,147.70
  6. Step 6: Final answer
    x = 40,368.15

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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.