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Finding the Fourth Proportional to 63,870.36, 95,720.64 and 33,878.42

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Solution

The fourth proportional to 63,870.36, 95,720.64 and 33,878.42 is: 50,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,870.36 : 95,720.64 = 33,878.42 : x
  2. Step 2: Convert to fraction form
    63,870.36/95,720.64 = 33,878.42/x
  3. Step 3: Cross multiply
    63,870.36x = 95,720.64 × 33,878.42
  4. Step 4: Simplify right side
    63,870.36x = 3,242,863,565.99
  5. Step 5: Solve for x
    x = 3,242,863,565.99/63,870.36
  6. Step 6: Final answer
    x = 50,772.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.