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Finding the Fourth Proportional to 6,315.98, 8,718.84 and 3,798.50

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Solution

The fourth proportional to 6,315.98, 8,718.84 and 3,798.50 is: 5,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,315.98 : 8,718.84 = 3,798.50 : x
  2. Step 2: Convert to fraction form
    6,315.98/8,718.84 = 3,798.50/x
  3. Step 3: Cross multiply
    6,315.98x = 8,718.84 × 3,798.50
  4. Step 4: Simplify right side
    6,315.98x = 33,118,470.15
  5. Step 5: Solve for x
    x = 33,118,470.15/6,315.98
  6. Step 6: Final answer
    x = 5,243.60

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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.