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Finding the Fourth Proportional to 71,996.29, 99,353.49 and 39,733.94

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Solution

The fourth proportional to 71,996.29, 99,353.49 and 39,733.94 is: 54,832.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,996.29 : 99,353.49 = 39,733.94 : x
  2. Step 2: Convert to fraction form
    71,996.29/99,353.49 = 39,733.94/x
  3. Step 3: Cross multiply
    71,996.29x = 99,353.49 × 39,733.94
  4. Step 4: Simplify right side
    71,996.29x = 3,947,705,610.45
  5. Step 5: Solve for x
    x = 3,947,705,610.45/71,996.29
  6. Step 6: Final answer
    x = 54,832.07

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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.