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Finding the Fourth Proportional to 63,405.88, 87,500.11 and 35,111.56

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Solution

The fourth proportional to 63,405.88, 87,500.11 and 35,111.56 is: 48,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,405.88 : 87,500.11 = 35,111.56 : x
  2. Step 2: Convert to fraction form
    63,405.88/87,500.11 = 35,111.56/x
  3. Step 3: Cross multiply
    63,405.88x = 87,500.11 × 35,111.56
  4. Step 4: Simplify right side
    63,405.88x = 3,072,265,362.27
  5. Step 5: Solve for x
    x = 3,072,265,362.27/63,405.88
  6. Step 6: Final answer
    x = 48,453.95

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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.