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Finding the Fourth Proportional to 82.94, 124.34 and 46.82

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Solution

The fourth proportional to 82.94, 124.34 and 46.82 is: 70.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.94 : 124.34 = 46.82 : x
  2. Step 2: Convert to fraction form
    82.94/124.34 = 46.82/x
  3. Step 3: Cross multiply
    82.94x = 124.34 × 46.82
  4. Step 4: Simplify right side
    82.94x = 5,820.74
  5. Step 5: Solve for x
    x = 5,820.74/82.94
  6. Step 6: Final answer
    x = 70.18

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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.