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Finding the Fourth Proportional to 45,065.74, 67,539.45 and 33,163.78

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Solution

The fourth proportional to 45,065.74, 67,539.45 and 33,163.78 is: 49,702.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,065.74 : 67,539.45 = 33,163.78 : x
  2. Step 2: Convert to fraction form
    45,065.74/67,539.45 = 33,163.78/x
  3. Step 3: Cross multiply
    45,065.74x = 67,539.45 × 33,163.78
  4. Step 4: Simplify right side
    45,065.74x = 2,239,863,461.12
  5. Step 5: Solve for x
    x = 2,239,863,461.12/45,065.74
  6. Step 6: Final answer
    x = 49,702.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.