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Finding the Fourth Proportional to 62.16, 93.18 and 23.64

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Solution

The fourth proportional to 62.16, 93.18 and 23.64 is: 35.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.16 : 93.18 = 23.64 : x
  2. Step 2: Convert to fraction form
    62.16/93.18 = 23.64/x
  3. Step 3: Cross multiply
    62.16x = 93.18 × 23.64
  4. Step 4: Simplify right side
    62.16x = 2,202.51
  5. Step 5: Solve for x
    x = 2,202.51/62.16
  6. Step 6: Final answer
    x = 35.44

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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.