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Finding the Fourth Proportional to 63,611.81, 87,787.04 and 35,317.50

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Solution

The fourth proportional to 63,611.81, 87,787.04 and 35,317.50 is: 48,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,611.81 : 87,787.04 = 35,317.50 : x
  2. Step 2: Convert to fraction form
    63,611.81/87,787.04 = 35,317.50/x
  3. Step 3: Cross multiply
    63,611.81x = 87,787.04 × 35,317.50
  4. Step 4: Simplify right side
    63,611.81x = 3,100,418,785.20
  5. Step 5: Solve for x
    x = 3,100,418,785.20/63,611.81
  6. Step 6: Final answer
    x = 48,739.67

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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.