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Finding the Fourth Proportional to 7,655.28, 11,480.76 and 2,107.28

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Solution

The fourth proportional to 7,655.28, 11,480.76 and 2,107.28 is: 3,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.28 : 11,480.76 = 2,107.28 : x
  2. Step 2: Convert to fraction form
    7,655.28/11,480.76 = 2,107.28/x
  3. Step 3: Cross multiply
    7,655.28x = 11,480.76 × 2,107.28
  4. Step 4: Simplify right side
    7,655.28x = 24,193,118.53
  5. Step 5: Solve for x
    x = 24,193,118.53/7,655.28
  6. Step 6: Final answer
    x = 3,160.32

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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.