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Finding the Fourth Proportional to 13,016.88, 17,971 and 8,548.44

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Solution

The fourth proportional to 13,016.88, 17,971 and 8,548.44 is: 11,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,016.88 : 17,971 = 8,548.44 : x
  2. Step 2: Convert to fraction form
    13,016.88/17,971 = 8,548.44/x
  3. Step 3: Cross multiply
    13,016.88x = 17,971 × 8,548.44
  4. Step 4: Simplify right side
    13,016.88x = 153,624,015.24
  5. Step 5: Solve for x
    x = 153,624,015.24/13,016.88
  6. Step 6: Final answer
    x = 11,801.91

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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.