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Finding the Fourth Proportional to 73,087.67, 100,860.99 and 39,553.67

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Solution

The fourth proportional to 73,087.67, 100,860.99 and 39,553.67 is: 54,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,087.67 : 100,860.99 = 39,553.67 : x
  2. Step 2: Convert to fraction form
    73,087.67/100,860.99 = 39,553.67/x
  3. Step 3: Cross multiply
    73,087.67x = 100,860.99 × 39,553.67
  4. Step 4: Simplify right side
    73,087.67x = 3,989,421,864.41
  5. Step 5: Solve for x
    x = 3,989,421,864.41/73,087.67
  6. Step 6: Final answer
    x = 54,584.06

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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.