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Finding the Fourth Proportional to 10,411.91, 14,368.79 and 5,696.19

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Solution

The fourth proportional to 10,411.91, 14,368.79 and 5,696.19 is: 7,860.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411.91 : 14,368.79 = 5,696.19 : x
  2. Step 2: Convert to fraction form
    10,411.91/14,368.79 = 5,696.19/x
  3. Step 3: Cross multiply
    10,411.91x = 14,368.79 × 5,696.19
  4. Step 4: Simplify right side
    10,411.91x = 81,847,372.15
  5. Step 5: Solve for x
    x = 81,847,372.15/10,411.91
  6. Step 6: Final answer
    x = 7,860.94

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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.