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Finding the Fourth Proportional to 33,235.49, 45,865.12 and 18,128.48

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Solution

The fourth proportional to 33,235.49, 45,865.12 and 18,128.48 is: 25,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,235.49 : 45,865.12 = 18,128.48 : x
  2. Step 2: Convert to fraction form
    33,235.49/45,865.12 = 18,128.48/x
  3. Step 3: Cross multiply
    33,235.49x = 45,865.12 × 18,128.48
  4. Step 4: Simplify right side
    33,235.49x = 831,464,669.96
  5. Step 5: Solve for x
    x = 831,464,669.96/33,235.49
  6. Step 6: Final answer
    x = 25,017.37

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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.