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Finding the Fourth Proportional to 11,868.95, 17,813.99 and 6,326.87

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Solution

The fourth proportional to 11,868.95, 17,813.99 and 6,326.87 is: 9,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.95 : 17,813.99 = 6,326.87 : x
  2. Step 2: Convert to fraction form
    11,868.95/17,813.99 = 6,326.87/x
  3. Step 3: Cross multiply
    11,868.95x = 17,813.99 × 6,326.87
  4. Step 4: Simplify right side
    11,868.95x = 112,706,798.91
  5. Step 5: Solve for x
    x = 112,706,798.91/11,868.95
  6. Step 6: Final answer
    x = 9,495.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.