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Finding the Fourth Proportional to 7,873.66, 11,813.19 and 2,683.18

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Solution

The fourth proportional to 7,873.66, 11,813.19 and 2,683.18 is: 4,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.66 : 11,813.19 = 2,683.18 : x
  2. Step 2: Convert to fraction form
    7,873.66/11,813.19 = 2,683.18/x
  3. Step 3: Cross multiply
    7,873.66x = 11,813.19 × 2,683.18
  4. Step 4: Simplify right side
    7,873.66x = 31,696,915.14
  5. Step 5: Solve for x
    x = 31,696,915.14/7,873.66
  6. Step 6: Final answer
    x = 4,025.69

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1.5x scale

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.