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Finding the Fourth Proportional to 35,471.42, 48,949.89 and 19,338.90

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Solution

The fourth proportional to 35,471.42, 48,949.89 and 19,338.90 is: 26,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,471.42 : 48,949.89 = 19,338.90 : x
  2. Step 2: Convert to fraction form
    35,471.42/48,949.89 = 19,338.90/x
  3. Step 3: Cross multiply
    35,471.42x = 48,949.89 × 19,338.90
  4. Step 4: Simplify right side
    35,471.42x = 946,637,027.72
  5. Step 5: Solve for x
    x = 946,637,027.72/35,471.42
  6. Step 6: Final answer
    x = 26,687.32

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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.