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Finding the Fourth Proportional to 58.72, 88.08 and 22.64

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Solution

The fourth proportional to 58.72, 88.08 and 22.64 is: 33.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.72 : 88.08 = 22.64 : x
  2. Step 2: Convert to fraction form
    58.72/88.08 = 22.64/x
  3. Step 3: Cross multiply
    58.72x = 88.08 × 22.64
  4. Step 4: Simplify right side
    58.72x = 1,994.13
  5. Step 5: Solve for x
    x = 1,994.13/58.72
  6. Step 6: Final answer
    x = 33.96

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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.