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Finding the Fourth Proportional to 18,453.86, 27,685.17 and 5,973.88

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Solution

The fourth proportional to 18,453.86, 27,685.17 and 5,973.88 is: 8,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.86 : 27,685.17 = 5,973.88 : x
  2. Step 2: Convert to fraction form
    18,453.86/27,685.17 = 5,973.88/x
  3. Step 3: Cross multiply
    18,453.86x = 27,685.17 × 5,973.88
  4. Step 4: Simplify right side
    18,453.86x = 165,387,744.93
  5. Step 5: Solve for x
    x = 165,387,744.93/18,453.86
  6. Step 6: Final answer
    x = 8,962.23

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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.