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Finding the Fourth Proportional to 46.69, 70.00 and 14.18

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Solution

The fourth proportional to 46.69, 70.00 and 14.18 is: 21.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.69 : 70.00 = 14.18 : x
  2. Step 2: Convert to fraction form
    46.69/70.00 = 14.18/x
  3. Step 3: Cross multiply
    46.69x = 70.00 × 14.18
  4. Step 4: Simplify right side
    46.69x = 992.60
  5. Step 5: Solve for x
    x = 992.60/46.69
  6. Step 6: Final answer
    x = 21.26

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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.