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Finding the Fourth Proportional to 18,323.55, 27,493.29 and 7,238.34

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Solution

The fourth proportional to 18,323.55, 27,493.29 and 7,238.34 is: 10,860.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.55 : 27,493.29 = 7,238.34 : x
  2. Step 2: Convert to fraction form
    18,323.55/27,493.29 = 7,238.34/x
  3. Step 3: Cross multiply
    18,323.55x = 27,493.29 × 7,238.34
  4. Step 4: Simplify right side
    18,323.55x = 199,005,780.74
  5. Step 5: Solve for x
    x = 199,005,780.74/18,323.55
  6. Step 6: Final answer
    x = 10,860.66

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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.