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Finding the Fourth Proportional to 35,999.59, 49,680.79 and 20,087.11

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Solution

The fourth proportional to 35,999.59, 49,680.79 and 20,087.11 is: 27,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,999.59 : 49,680.79 = 20,087.11 : x
  2. Step 2: Convert to fraction form
    35,999.59/49,680.79 = 20,087.11/x
  3. Step 3: Cross multiply
    35,999.59x = 49,680.79 × 20,087.11
  4. Step 4: Simplify right side
    35,999.59x = 997,943,493.62
  5. Step 5: Solve for x
    x = 997,943,493.62/35,999.59
  6. Step 6: Final answer
    x = 27,720.97

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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.