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Finding the Fourth Proportional to 12,389.01, 17,096.85 and 7,083.94

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Solution

The fourth proportional to 12,389.01, 17,096.85 and 7,083.94 is: 9,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.01 : 17,096.85 = 7,083.94 : x
  2. Step 2: Convert to fraction form
    12,389.01/17,096.85 = 7,083.94/x
  3. Step 3: Cross multiply
    12,389.01x = 17,096.85 × 7,083.94
  4. Step 4: Simplify right side
    12,389.01x = 121,112,938.69
  5. Step 5: Solve for x
    x = 121,112,938.69/12,389.01
  6. Step 6: Final answer
    x = 9,775.84

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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.