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Finding the Fourth Proportional to 35,471.52, 48,958.32 and 20,366.64

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Solution

The fourth proportional to 35,471.52, 48,958.32 and 20,366.64 is: 28,110.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,471.52 : 48,958.32 = 20,366.64 : x
  2. Step 2: Convert to fraction form
    35,471.52/48,958.32 = 20,366.64/x
  3. Step 3: Cross multiply
    35,471.52x = 48,958.32 × 20,366.64
  4. Step 4: Simplify right side
    35,471.52x = 997,116,478.44
  5. Step 5: Solve for x
    x = 997,116,478.44/35,471.52
  6. Step 6: Final answer
    x = 28,110.34

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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.