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Finding the Fourth Proportional to 35,405.72, 48,859.50 and 19,489.82

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Solution

The fourth proportional to 35,405.72, 48,859.50 and 19,489.82 is: 26,895.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.72 : 48,859.50 = 19,489.82 : x
  2. Step 2: Convert to fraction form
    35,405.72/48,859.50 = 19,489.82/x
  3. Step 3: Cross multiply
    35,405.72x = 48,859.50 × 19,489.82
  4. Step 4: Simplify right side
    35,405.72x = 952,262,860.29
  5. Step 5: Solve for x
    x = 952,262,860.29/35,405.72
  6. Step 6: Final answer
    x = 26,895.73

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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.