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Finding the Fourth Proportional to 19.16, 26.48 and 14.35

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Solution

The fourth proportional to 19.16, 26.48 and 14.35 is: 19.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.16 : 26.48 = 14.35 : x
  2. Step 2: Convert to fraction form
    19.16/26.48 = 14.35/x
  3. Step 3: Cross multiply
    19.16x = 26.48 × 14.35
  4. Step 4: Simplify right side
    19.16x = 379.99
  5. Step 5: Solve for x
    x = 379.99/19.16
  6. Step 6: Final answer
    x = 19.83

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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.