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Finding the Fourth Proportional to 12,123.01, 18,187.68 and 3,803.29

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Solution

The fourth proportional to 12,123.01, 18,187.68 and 3,803.29 is: 5,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,123.01 : 18,187.68 = 3,803.29 : x
  2. Step 2: Convert to fraction form
    12,123.01/18,187.68 = 3,803.29/x
  3. Step 3: Cross multiply
    12,123.01x = 18,187.68 × 3,803.29
  4. Step 4: Simplify right side
    12,123.01x = 69,173,021.47
  5. Step 5: Solve for x
    x = 69,173,021.47/12,123.01
  6. Step 6: Final answer
    x = 5,705.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.