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Finding the Fourth Proportional to 14,494.98, 21,841.22 and 11,920.17

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Solution

The fourth proportional to 14,494.98, 21,841.22 and 11,920.17 is: 17,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,494.98 : 21,841.22 = 11,920.17 : x
  2. Step 2: Convert to fraction form
    14,494.98/21,841.22 = 11,920.17/x
  3. Step 3: Cross multiply
    14,494.98x = 21,841.22 × 11,920.17
  4. Step 4: Simplify right side
    14,494.98x = 260,350,956.98
  5. Step 5: Solve for x
    x = 260,350,956.98/14,494.98
  6. Step 6: Final answer
    x = 17,961.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.