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Finding the Fourth Proportional to 46.97, 70.59 and 41.70

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Solution

The fourth proportional to 46.97, 70.59 and 41.70 is: 62.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.97 : 70.59 = 41.70 : x
  2. Step 2: Convert to fraction form
    46.97/70.59 = 41.70/x
  3. Step 3: Cross multiply
    46.97x = 70.59 × 41.70
  4. Step 4: Simplify right side
    46.97x = 2,943.60
  5. Step 5: Solve for x
    x = 2,943.60/46.97
  6. Step 6: Final answer
    x = 62.67

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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.