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Finding the Fourth Proportional to 10,827, 14,941.40 and 6,111.32

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Solution

The fourth proportional to 10,827, 14,941.40 and 6,111.32 is: 8,433.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,827 : 14,941.40 = 6,111.32 : x
  2. Step 2: Convert to fraction form
    10,827/14,941.40 = 6,111.32/x
  3. Step 3: Cross multiply
    10,827x = 14,941.40 × 6,111.32
  4. Step 4: Simplify right side
    10,827x = 91,311,571.38
  5. Step 5: Solve for x
    x = 91,311,571.38/10,827
  6. Step 6: Final answer
    x = 8,433.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.