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Finding the Fourth Proportional to 23,889.80, 32,969.03 and 13,278.80

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Solution

The fourth proportional to 23,889.80, 32,969.03 and 13,278.80 is: 18,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,889.80 : 32,969.03 = 13,278.80 : x
  2. Step 2: Convert to fraction form
    23,889.80/32,969.03 = 13,278.80/x
  3. Step 3: Cross multiply
    23,889.80x = 32,969.03 × 13,278.80
  4. Step 4: Simplify right side
    23,889.80x = 437,789,171.59
  5. Step 5: Solve for x
    x = 437,789,171.59/23,889.80
  6. Step 6: Final answer
    x = 18,325.36

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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.