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Finding the Fourth Proportional to 22,858.43, 31,544.01 and 12,787.99

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Solution

The fourth proportional to 22,858.43, 31,544.01 and 12,787.99 is: 17,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,858.43 : 31,544.01 = 12,787.99 : x
  2. Step 2: Convert to fraction form
    22,858.43/31,544.01 = 12,787.99/x
  3. Step 3: Cross multiply
    22,858.43x = 31,544.01 × 12,787.99
  4. Step 4: Simplify right side
    22,858.43x = 403,384,405.58
  5. Step 5: Solve for x
    x = 403,384,405.58/22,858.43
  6. Step 6: Final answer
    x = 17,647.08

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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.