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Finding the Fourth Proportional to 10,412.76, 14,369.32 and 5,696.74

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Solution

The fourth proportional to 10,412.76, 14,369.32 and 5,696.74 is: 7,861.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.76 : 14,369.32 = 5,696.74 : x
  2. Step 2: Convert to fraction form
    10,412.76/14,369.32 = 5,696.74/x
  3. Step 3: Cross multiply
    10,412.76x = 14,369.32 × 5,696.74
  4. Step 4: Simplify right side
    10,412.76x = 81,858,280.02
  5. Step 5: Solve for x
    x = 81,858,280.02/10,412.76
  6. Step 6: Final answer
    x = 7,861.34

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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.