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Finding the Fourth Proportional to 64,235.36, 96,375.86 and 28,693.38

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Solution

The fourth proportional to 64,235.36, 96,375.86 and 28,693.38 is: 43,050.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,235.36 : 96,375.86 = 28,693.38 : x
  2. Step 2: Convert to fraction form
    64,235.36/96,375.86 = 28,693.38/x
  3. Step 3: Cross multiply
    64,235.36x = 96,375.86 × 28,693.38
  4. Step 4: Simplify right side
    64,235.36x = 2,765,349,173.81
  5. Step 5: Solve for x
    x = 2,765,349,173.81/64,235.36
  6. Step 6: Final answer
    x = 43,050.26

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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.