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Finding the Fourth Proportional to 33,108.50, 45,689.74 and 18,204.50

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Solution

The fourth proportional to 33,108.50, 45,689.74 and 18,204.50 is: 25,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,108.50 : 45,689.74 = 18,204.50 : x
  2. Step 2: Convert to fraction form
    33,108.50/45,689.74 = 18,204.50/x
  3. Step 3: Cross multiply
    33,108.50x = 45,689.74 × 18,204.50
  4. Step 4: Simplify right side
    33,108.50x = 831,758,871.83
  5. Step 5: Solve for x
    x = 831,758,871.83/33,108.50
  6. Step 6: Final answer
    x = 25,122.22

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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.