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Finding the Fourth Proportional to 35,471.45, 48,949.80 and 19,555.90

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Solution

The fourth proportional to 35,471.45, 48,949.80 and 19,555.90 is: 26,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,471.45 : 48,949.80 = 19,555.90 : x
  2. Step 2: Convert to fraction form
    35,471.45/48,949.80 = 19,555.90/x
  3. Step 3: Cross multiply
    35,471.45x = 48,949.80 × 19,555.90
  4. Step 4: Simplify right side
    35,471.45x = 957,257,393.82
  5. Step 5: Solve for x
    x = 957,257,393.82/35,471.45
  6. Step 6: Final answer
    x = 26,986.70

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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.