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Finding the Fourth Proportional to 45,855.75, 63,207.79 and 36,149.38

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Solution

The fourth proportional to 45,855.75, 63,207.79 and 36,149.38 is: 49,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,855.75 : 63,207.79 = 36,149.38 : x
  2. Step 2: Convert to fraction form
    45,855.75/63,207.79 = 36,149.38/x
  3. Step 3: Cross multiply
    45,855.75x = 63,207.79 × 36,149.38
  4. Step 4: Simplify right side
    45,855.75x = 2,284,922,419.67
  5. Step 5: Solve for x
    x = 2,284,922,419.67/45,855.75
  6. Step 6: Final answer
    x = 49,828.48

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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.