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Finding the Fourth Proportional to 49,074.48, 73,611.54 and 12,138.48

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Solution

The fourth proportional to 49,074.48, 73,611.54 and 12,138.48 is: 18,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,074.48 : 73,611.54 = 12,138.48 : x
  2. Step 2: Convert to fraction form
    49,074.48/73,611.54 = 12,138.48/x
  3. Step 3: Cross multiply
    49,074.48x = 73,611.54 × 12,138.48
  4. Step 4: Simplify right side
    49,074.48x = 893,532,206.06
  5. Step 5: Solve for x
    x = 893,532,206.06/49,074.48
  6. Step 6: Final answer
    x = 18,207.68

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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.