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Finding the Fourth Proportional to 35,912.72, 49,552 and 20,804.48

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Solution

The fourth proportional to 35,912.72, 49,552 and 20,804.48 is: 28,705.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,912.72 : 49,552 = 20,804.48 : x
  2. Step 2: Convert to fraction form
    35,912.72/49,552 = 20,804.48/x
  3. Step 3: Cross multiply
    35,912.72x = 49,552 × 20,804.48
  4. Step 4: Simplify right side
    35,912.72x = 1,030,903,592.96
  5. Step 5: Solve for x
    x = 1,030,903,592.96/35,912.72
  6. Step 6: Final answer
    x = 28,705.81

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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.