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Finding the Fourth Proportional to 19,857.93, 29,795.70 and 7,375.02

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Solution

The fourth proportional to 19,857.93, 29,795.70 and 7,375.02 is: 11,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.93 : 29,795.70 = 7,375.02 : x
  2. Step 2: Convert to fraction form
    19,857.93/29,795.70 = 7,375.02/x
  3. Step 3: Cross multiply
    19,857.93x = 29,795.70 × 7,375.02
  4. Step 4: Simplify right side
    19,857.93x = 219,743,883.41
  5. Step 5: Solve for x
    x = 219,743,883.41/19,857.93
  6. Step 6: Final answer
    x = 11,065.80

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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.