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Finding the Fourth Proportional to 11,374.71, 15,696.93 and 6,339.14

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Solution

The fourth proportional to 11,374.71, 15,696.93 and 6,339.14 is: 8,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,374.71 : 15,696.93 = 6,339.14 : x
  2. Step 2: Convert to fraction form
    11,374.71/15,696.93 = 6,339.14/x
  3. Step 3: Cross multiply
    11,374.71x = 15,696.93 × 6,339.14
  4. Step 4: Simplify right side
    11,374.71x = 99,505,036.84
  5. Step 5: Solve for x
    x = 99,505,036.84/11,374.71
  6. Step 6: Final answer
    x = 8,747.92

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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.