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Finding the Fourth Proportional to 33,236.50, 45,869.61 and 18,332.50

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Solution

The fourth proportional to 33,236.50, 45,869.61 and 18,332.50 is: 25,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,236.50 : 45,869.61 = 18,332.50 : x
  2. Step 2: Convert to fraction form
    33,236.50/45,869.61 = 18,332.50/x
  3. Step 3: Cross multiply
    33,236.50x = 45,869.61 × 18,332.50
  4. Step 4: Simplify right side
    33,236.50x = 840,904,625.33
  5. Step 5: Solve for x
    x = 840,904,625.33/33,236.50
  6. Step 6: Final answer
    x = 25,300.64

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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.