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Finding the Fourth Proportional to 53,855.40, 80,750.70 and 27,611.40

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Solution

The fourth proportional to 53,855.40, 80,750.70 and 27,611.40 is: 41,400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,855.40 : 80,750.70 = 27,611.40 : x
  2. Step 2: Convert to fraction form
    53,855.40/80,750.70 = 27,611.40/x
  3. Step 3: Cross multiply
    53,855.40x = 80,750.70 × 27,611.40
  4. Step 4: Simplify right side
    53,855.40x = 2,229,639,877.98
  5. Step 5: Solve for x
    x = 2,229,639,877.98/53,855.40
  6. Step 6: Final answer
    x = 41,400.49

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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.