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Finding the Fourth Proportional to 46.95, 64.74 and 36.56

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Solution

The fourth proportional to 46.95, 64.74 and 36.56 is: 50.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.95 : 64.74 = 36.56 : x
  2. Step 2: Convert to fraction form
    46.95/64.74 = 36.56/x
  3. Step 3: Cross multiply
    46.95x = 64.74 × 36.56
  4. Step 4: Simplify right side
    46.95x = 2,366.57
  5. Step 5: Solve for x
    x = 2,366.57/46.95
  6. Step 6: Final answer
    x = 50.41

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Why These Related Problems?

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