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Finding the Fourth Proportional to 64,048.81, 96,131.82 and 32,480.67

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Solution

The fourth proportional to 64,048.81, 96,131.82 and 32,480.67 is: 48,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,048.81 : 96,131.82 = 32,480.67 : x
  2. Step 2: Convert to fraction form
    64,048.81/96,131.82 = 32,480.67/x
  3. Step 3: Cross multiply
    64,048.81x = 96,131.82 × 32,480.67
  4. Step 4: Simplify right side
    64,048.81x = 3,122,425,921.92
  5. Step 5: Solve for x
    x = 3,122,425,921.92/64,048.81
  6. Step 6: Final answer
    x = 48,750.72

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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.