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Finding the Fourth Proportional to 71,821.69, 107,732.53 and 22,573.69

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Solution

The fourth proportional to 71,821.69, 107,732.53 and 22,573.69 is: 33,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,821.69 : 107,732.53 = 22,573.69 : x
  2. Step 2: Convert to fraction form
    71,821.69/107,732.53 = 22,573.69/x
  3. Step 3: Cross multiply
    71,821.69x = 107,732.53 × 22,573.69
  4. Step 4: Simplify right side
    71,821.69x = 2,431,920,494.02
  5. Step 5: Solve for x
    x = 2,431,920,494.02/71,821.69
  6. Step 6: Final answer
    x = 33,860.53

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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.