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Finding the Fourth Proportional to 6,718.36, 9,268.88 and 4,064.80

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Solution

The fourth proportional to 6,718.36, 9,268.88 and 4,064.80 is: 5,607.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.36 : 9,268.88 = 4,064.80 : x
  2. Step 2: Convert to fraction form
    6,718.36/9,268.88 = 4,064.80/x
  3. Step 3: Cross multiply
    6,718.36x = 9,268.88 × 4,064.80
  4. Step 4: Simplify right side
    6,718.36x = 37,676,143.42
  5. Step 5: Solve for x
    x = 37,676,143.42/6,718.36
  6. Step 6: Final answer
    x = 5,607.94

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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.