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Finding the Fourth Proportional to 8,713.65, 12,028.01 and 5,360.96

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Solution

The fourth proportional to 8,713.65, 12,028.01 and 5,360.96 is: 7,400.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.65 : 12,028.01 = 5,360.96 : x
  2. Step 2: Convert to fraction form
    8,713.65/12,028.01 = 5,360.96/x
  3. Step 3: Cross multiply
    8,713.65x = 12,028.01 × 5,360.96
  4. Step 4: Simplify right side
    8,713.65x = 64,481,593.54
  5. Step 5: Solve for x
    x = 64,481,593.54/8,713.65
  6. Step 6: Final answer
    x = 7,400.07

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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.