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Finding the Fourth Proportional to 18,059.81, 24,909.23 and 13,040.60

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Solution

The fourth proportional to 18,059.81, 24,909.23 and 13,040.60 is: 17,986.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059.81 : 24,909.23 = 13,040.60 : x
  2. Step 2: Convert to fraction form
    18,059.81/24,909.23 = 13,040.60/x
  3. Step 3: Cross multiply
    18,059.81x = 24,909.23 × 13,040.60
  4. Step 4: Simplify right side
    18,059.81x = 324,831,239.54
  5. Step 5: Solve for x
    x = 324,831,239.54/18,059.81
  6. Step 6: Final answer
    x = 17,986.42

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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.