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Finding the Fourth Proportional to 18,980.34, 26,227.68 and 16,454.34

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Solution

The fourth proportional to 18,980.34, 26,227.68 and 16,454.34 is: 22,737.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980.34 : 26,227.68 = 16,454.34 : x
  2. Step 2: Convert to fraction form
    18,980.34/26,227.68 = 16,454.34/x
  3. Step 3: Cross multiply
    18,980.34x = 26,227.68 × 16,454.34
  4. Step 4: Simplify right side
    18,980.34x = 431,559,164.13
  5. Step 5: Solve for x
    x = 431,559,164.13/18,980.34
  6. Step 6: Final answer
    x = 22,737.17

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1.5x scale

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.