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Finding the Fourth Proportional to 17,891.74, 26,842.14 and 12,637.01

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Solution

The fourth proportional to 17,891.74, 26,842.14 and 12,637.01 is: 18,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,891.74 : 26,842.14 = 12,637.01 : x
  2. Step 2: Convert to fraction form
    17,891.74/26,842.14 = 12,637.01/x
  3. Step 3: Cross multiply
    17,891.74x = 26,842.14 × 12,637.01
  4. Step 4: Simplify right side
    17,891.74x = 339,204,458.71
  5. Step 5: Solve for x
    x = 339,204,458.71/17,891.74
  6. Step 6: Final answer
    x = 18,958.72

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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.