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Finding the Fourth Proportional to 66.24, 99.26 and 46.95

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Solution

The fourth proportional to 66.24, 99.26 and 46.95 is: 70.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66.24 : 99.26 = 46.95 : x
  2. Step 2: Convert to fraction form
    66.24/99.26 = 46.95/x
  3. Step 3: Cross multiply
    66.24x = 99.26 × 46.95
  4. Step 4: Simplify right side
    66.24x = 4,659.77
  5. Step 5: Solve for x
    x = 4,659.77/66.24
  6. Step 6: Final answer
    x = 70.34

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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.