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Finding the Fourth Proportional to 4,990.16, 7,475.16 and 4,581.92

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Solution

The fourth proportional to 4,990.16, 7,475.16 and 4,581.92 is: 6,863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.16 : 7,475.16 = 4,581.92 : x
  2. Step 2: Convert to fraction form
    4,990.16/7,475.16 = 4,581.92/x
  3. Step 3: Cross multiply
    4,990.16x = 7,475.16 × 4,581.92
  4. Step 4: Simplify right side
    4,990.16x = 34,250,585.11
  5. Step 5: Solve for x
    x = 34,250,585.11/4,990.16
  6. Step 6: Final answer
    x = 6,863.62

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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.