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Finding the Fourth Proportional to 64.14, 96.24 and 32.10

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Solution

The fourth proportional to 64.14, 96.24 and 32.10 is: 48.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.14 : 96.24 = 32.10 : x
  2. Step 2: Convert to fraction form
    64.14/96.24 = 32.10/x
  3. Step 3: Cross multiply
    64.14x = 96.24 × 32.10
  4. Step 4: Simplify right side
    64.14x = 3,089.30
  5. Step 5: Solve for x
    x = 3,089.30/64.14
  6. Step 6: Final answer
    x = 48.17

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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.