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Finding the Fourth Proportional to 35,471.82, 48,955.54 and 20,369.20

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Solution

The fourth proportional to 35,471.82, 48,955.54 and 20,369.20 is: 28,112.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,471.82 : 48,955.54 = 20,369.20 : x
  2. Step 2: Convert to fraction form
    35,471.82/48,955.54 = 20,369.20/x
  3. Step 3: Cross multiply
    35,471.82x = 48,955.54 × 20,369.20
  4. Step 4: Simplify right side
    35,471.82x = 997,185,185.37
  5. Step 5: Solve for x
    x = 997,185,185.37/35,471.82
  6. Step 6: Final answer
    x = 28,112.04

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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.