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Finding the Fourth Proportional to 62,611.56, 86,405.64 and 34,318.32

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Solution

The fourth proportional to 62,611.56, 86,405.64 and 34,318.32 is: 47,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,611.56 : 86,405.64 = 34,318.32 : x
  2. Step 2: Convert to fraction form
    62,611.56/86,405.64 = 34,318.32/x
  3. Step 3: Cross multiply
    62,611.56x = 86,405.64 × 34,318.32
  4. Step 4: Simplify right side
    62,611.56x = 2,965,296,403.32
  5. Step 5: Solve for x
    x = 2,965,296,403.32/62,611.56
  6. Step 6: Final answer
    x = 47,360.21

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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.