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Finding the Fourth Proportional to 8,913.36, 12,299.89 and 4,934.23

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Solution

The fourth proportional to 8,913.36, 12,299.89 and 4,934.23 is: 6,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.36 : 12,299.89 = 4,934.23 : x
  2. Step 2: Convert to fraction form
    8,913.36/12,299.89 = 4,934.23/x
  3. Step 3: Cross multiply
    8,913.36x = 12,299.89 × 4,934.23
  4. Step 4: Simplify right side
    8,913.36x = 60,690,486.23
  5. Step 5: Solve for x
    x = 60,690,486.23/8,913.36
  6. Step 6: Final answer
    x = 6,808.93

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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.