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Finding the Fourth Proportional to 32.10, 48.14 and 11.79

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Solution

The fourth proportional to 32.10, 48.14 and 11.79 is: 17.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.10 : 48.14 = 11.79 : x
  2. Step 2: Convert to fraction form
    32.10/48.14 = 11.79/x
  3. Step 3: Cross multiply
    32.10x = 48.14 × 11.79
  4. Step 4: Simplify right side
    32.10x = 567.51
  5. Step 5: Solve for x
    x = 567.51/32.10
  6. Step 6: Final answer
    x = 17.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.