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Finding the Fourth Proportional to 4,491.76, 6,732.48 and 2,409.28

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Solution

The fourth proportional to 4,491.76, 6,732.48 and 2,409.28 is: 3,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,491.76 : 6,732.48 = 2,409.28 : x
  2. Step 2: Convert to fraction form
    4,491.76/6,732.48 = 2,409.28/x
  3. Step 3: Cross multiply
    4,491.76x = 6,732.48 × 2,409.28
  4. Step 4: Simplify right side
    4,491.76x = 16,220,429.41
  5. Step 5: Solve for x
    x = 16,220,429.41/4,491.76
  6. Step 6: Final answer
    x = 3,611.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.