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Finding the Fourth Proportional to 13,893.94, 19,173.64 and 7,606.31

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Solution

The fourth proportional to 13,893.94, 19,173.64 and 7,606.31 is: 10,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.94 : 19,173.64 = 7,606.31 : x
  2. Step 2: Convert to fraction form
    13,893.94/19,173.64 = 7,606.31/x
  3. Step 3: Cross multiply
    13,893.94x = 19,173.64 × 7,606.31
  4. Step 4: Simplify right side
    13,893.94x = 145,840,678.59
  5. Step 5: Solve for x
    x = 145,840,678.59/13,893.94
  6. Step 6: Final answer
    x = 10,496.71

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1.5x scale

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.