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Finding the Fourth Proportional to 61,990.43, 92,940.08 and 19,846.13

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Solution

The fourth proportional to 61,990.43, 92,940.08 and 19,846.13 is: 29,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990.43 : 92,940.08 = 19,846.13 : x
  2. Step 2: Convert to fraction form
    61,990.43/92,940.08 = 19,846.13/x
  3. Step 3: Cross multiply
    61,990.43x = 92,940.08 × 19,846.13
  4. Step 4: Simplify right side
    61,990.43x = 1,844,500,345.96
  5. Step 5: Solve for x
    x = 1,844,500,345.96/61,990.43
  6. Step 6: Final answer
    x = 29,754.60

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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.