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Finding the Fourth Proportional to 96.57, 144.86 and 32.45

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Solution

The fourth proportional to 96.57, 144.86 and 32.45 is: 48.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.57 : 144.86 = 32.45 : x
  2. Step 2: Convert to fraction form
    96.57/144.86 = 32.45/x
  3. Step 3: Cross multiply
    96.57x = 144.86 × 32.45
  4. Step 4: Simplify right side
    96.57x = 4,699.82
  5. Step 5: Solve for x
    x = 4,699.82/96.57
  6. Step 6: Final answer
    x = 48.67

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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.