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Finding the Fourth Proportional to 18,174.80, 27,263.02 and 9,426.80

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Solution

The fourth proportional to 18,174.80, 27,263.02 and 9,426.80 is: 14,140.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,174.80 : 27,263.02 = 9,426.80 : x
  2. Step 2: Convert to fraction form
    18,174.80/27,263.02 = 9,426.80/x
  3. Step 3: Cross multiply
    18,174.80x = 27,263.02 × 9,426.80
  4. Step 4: Simplify right side
    18,174.80x = 257,003,036.94
  5. Step 5: Solve for x
    x = 257,003,036.94/18,174.80
  6. Step 6: Final answer
    x = 14,140.63

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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.