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Finding the Fourth Proportional to 13,893.62, 19,173.81 and 8,304.50

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Solution

The fourth proportional to 13,893.62, 19,173.81 and 8,304.50 is: 11,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,893.62 : 19,173.81 = 8,304.50 : x
  2. Step 2: Convert to fraction form
    13,893.62/19,173.81 = 8,304.50/x
  3. Step 3: Cross multiply
    13,893.62x = 19,173.81 × 8,304.50
  4. Step 4: Simplify right side
    13,893.62x = 159,228,905.15
  5. Step 5: Solve for x
    x = 159,228,905.15/13,893.62
  6. Step 6: Final answer
    x = 11,460.58

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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.