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Finding the Fourth Proportional to 64,362.72, 96,469.44 and 38,089.56

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Solution

The fourth proportional to 64,362.72, 96,469.44 and 38,089.56 is: 57,090.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,362.72 : 96,469.44 = 38,089.56 : x
  2. Step 2: Convert to fraction form
    64,362.72/96,469.44 = 38,089.56/x
  3. Step 3: Cross multiply
    64,362.72x = 96,469.44 × 38,089.56
  4. Step 4: Simplify right side
    64,362.72x = 3,674,478,523.05
  5. Step 5: Solve for x
    x = 3,674,478,523.05/64,362.72
  6. Step 6: Final answer
    x = 57,090.17

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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.