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Finding the Fourth Proportional to 71,299.10, 106,911.73 and 38,010.22

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Solution

The fourth proportional to 71,299.10, 106,911.73 and 38,010.22 is: 56,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,299.10 : 106,911.73 = 38,010.22 : x
  2. Step 2: Convert to fraction form
    71,299.10/106,911.73 = 38,010.22/x
  3. Step 3: Cross multiply
    71,299.10x = 106,911.73 × 38,010.22
  4. Step 4: Simplify right side
    71,299.10x = 4,063,738,377.88
  5. Step 5: Solve for x
    x = 4,063,738,377.88/71,299.10
  6. Step 6: Final answer
    x = 56,995.65

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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.