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Finding the Fourth Proportional to 13,576.07, 18,735.00 and 7,607.82

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Solution

The fourth proportional to 13,576.07, 18,735.00 and 7,607.82 is: 10,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.07 : 18,735.00 = 7,607.82 : x
  2. Step 2: Convert to fraction form
    13,576.07/18,735.00 = 7,607.82/x
  3. Step 3: Cross multiply
    13,576.07x = 18,735.00 × 7,607.82
  4. Step 4: Simplify right side
    13,576.07x = 142,532,549.43
  5. Step 5: Solve for x
    x = 142,532,549.43/13,576.07
  6. Step 6: Final answer
    x = 10,498.81

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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.