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Finding the Fourth Proportional to 52,940.44, 79,424.43 and 19,670.10

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Solution

The fourth proportional to 52,940.44, 79,424.43 and 19,670.10 is: 29,510.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,940.44 : 79,424.43 = 19,670.10 : x
  2. Step 2: Convert to fraction form
    52,940.44/79,424.43 = 19,670.10/x
  3. Step 3: Cross multiply
    52,940.44x = 79,424.43 × 19,670.10
  4. Step 4: Simplify right side
    52,940.44x = 1,562,286,480.54
  5. Step 5: Solve for x
    x = 1,562,286,480.54/52,940.44
  6. Step 6: Final answer
    x = 29,510.27

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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.