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Finding the Fourth Proportional to 12,139.73, 16,753.39 and 7,359.82

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Solution

The fourth proportional to 12,139.73, 16,753.39 and 7,359.82 is: 10,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,139.73 : 16,753.39 = 7,359.82 : x
  2. Step 2: Convert to fraction form
    12,139.73/16,753.39 = 7,359.82/x
  3. Step 3: Cross multiply
    12,139.73x = 16,753.39 × 7,359.82
  4. Step 4: Simplify right side
    12,139.73x = 123,301,874.51
  5. Step 5: Solve for x
    x = 123,301,874.51/12,139.73
  6. Step 6: Final answer
    x = 10,156.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.