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Finding the Fourth Proportional to 72.14, 99.58 and 46.26

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Solution

The fourth proportional to 72.14, 99.58 and 46.26 is: 63.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72.14 : 99.58 = 46.26 : x
  2. Step 2: Convert to fraction form
    72.14/99.58 = 46.26/x
  3. Step 3: Cross multiply
    72.14x = 99.58 × 46.26
  4. Step 4: Simplify right side
    72.14x = 4,606.57
  5. Step 5: Solve for x
    x = 4,606.57/72.14
  6. Step 6: Final answer
    x = 63.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.