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Finding the Fourth Proportional to 17,892.80, 26,770.08 and 9,690.56

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Solution

The fourth proportional to 17,892.80, 26,770.08 and 9,690.56 is: 14,498.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,892.80 : 26,770.08 = 9,690.56 : x
  2. Step 2: Convert to fraction form
    17,892.80/26,770.08 = 9,690.56/x
  3. Step 3: Cross multiply
    17,892.80x = 26,770.08 × 9,690.56
  4. Step 4: Simplify right side
    17,892.80x = 259,417,066.44
  5. Step 5: Solve for x
    x = 259,417,066.44/17,892.80
  6. Step 6: Final answer
    x = 14,498.41

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1.5x scale

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.