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Finding the Fourth Proportional to 33,099.99, 45,676.98 and 18,951.90

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Solution

The fourth proportional to 33,099.99, 45,676.98 and 18,951.90 is: 26,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,099.99 : 45,676.98 = 18,951.90 : x
  2. Step 2: Convert to fraction form
    33,099.99/45,676.98 = 18,951.90/x
  3. Step 3: Cross multiply
    33,099.99x = 45,676.98 × 18,951.90
  4. Step 4: Simplify right side
    33,099.99x = 865,665,557.26
  5. Step 5: Solve for x
    x = 865,665,557.26/33,099.99
  6. Step 6: Final answer
    x = 26,153.05

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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.