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Finding the Fourth Proportional to 58.96, 88.48 and 31.93

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Solution

The fourth proportional to 58.96, 88.48 and 31.93 is: 47.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.96 : 88.48 = 31.93 : x
  2. Step 2: Convert to fraction form
    58.96/88.48 = 31.93/x
  3. Step 3: Cross multiply
    58.96x = 88.48 × 31.93
  4. Step 4: Simplify right side
    58.96x = 2,824.56
  5. Step 5: Solve for x
    x = 2,824.56/58.96
  6. Step 6: Final answer
    x = 47.91

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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.