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Finding the Fourth Proportional to 46.98, 70.49 and 14.92

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Solution

The fourth proportional to 46.98, 70.49 and 14.92 is: 22.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.98 : 70.49 = 14.92 : x
  2. Step 2: Convert to fraction form
    46.98/70.49 = 14.92/x
  3. Step 3: Cross multiply
    46.98x = 70.49 × 14.92
  4. Step 4: Simplify right side
    46.98x = 1,051.71
  5. Step 5: Solve for x
    x = 1,051.71/46.98
  6. Step 6: Final answer
    x = 22.39

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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.