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Finding the Fourth Proportional to 19,855.03, 29,788.02 and 6,716.63

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Solution

The fourth proportional to 19,855.03, 29,788.02 and 6,716.63 is: 10,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.03 : 29,788.02 = 6,716.63 : x
  2. Step 2: Convert to fraction form
    19,855.03/29,788.02 = 6,716.63/x
  3. Step 3: Cross multiply
    19,855.03x = 29,788.02 × 6,716.63
  4. Step 4: Simplify right side
    19,855.03x = 200,075,108.77
  5. Step 5: Solve for x
    x = 200,075,108.77/19,855.03
  6. Step 6: Final answer
    x = 10,076.80

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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.