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Finding the Fourth Proportional to 14,969.88, 20,659.83 and 8,597.31

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Solution

The fourth proportional to 14,969.88, 20,659.83 and 8,597.31 is: 11,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,969.88 : 20,659.83 = 8,597.31 : x
  2. Step 2: Convert to fraction form
    14,969.88/20,659.83 = 8,597.31/x
  3. Step 3: Cross multiply
    14,969.88x = 20,659.83 × 8,597.31
  4. Step 4: Simplify right side
    14,969.88x = 177,618,963.06
  5. Step 5: Solve for x
    x = 177,618,963.06/14,969.88
  6. Step 6: Final answer
    x = 11,865.09

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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.