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Finding the Fourth Proportional to 35,405.40, 48,859.46 and 19,489.73

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Solution

The fourth proportional to 35,405.40, 48,859.46 and 19,489.73 is: 26,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.40 : 48,859.46 = 19,489.73 : x
  2. Step 2: Convert to fraction form
    35,405.40/48,859.46 = 19,489.73/x
  3. Step 3: Cross multiply
    35,405.40x = 48,859.46 × 19,489.73
  4. Step 4: Simplify right side
    35,405.40x = 952,257,683.35
  5. Step 5: Solve for x
    x = 952,257,683.35/35,405.40
  6. Step 6: Final answer
    x = 26,895.83

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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.