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Finding the Fourth Proportional to 63,828, 95,741.94 and 28,726.64

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Solution

The fourth proportional to 63,828, 95,741.94 and 28,726.64 is: 43,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,828 : 95,741.94 = 28,726.64 : x
  2. Step 2: Convert to fraction form
    63,828/95,741.94 = 28,726.64/x
  3. Step 3: Cross multiply
    63,828x = 95,741.94 × 28,726.64
  4. Step 4: Simplify right side
    63,828x = 2,750,344,243.28
  5. Step 5: Solve for x
    x = 2,750,344,243.28/63,828
  6. Step 6: Final answer
    x = 43,089.93

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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.