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Finding the Fourth Proportional to 18,153.59, 27,171.79 and 9,376.43

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Solution

The fourth proportional to 18,153.59, 27,171.79 and 9,376.43 is: 14,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.59 : 27,171.79 = 9,376.43 : x
  2. Step 2: Convert to fraction form
    18,153.59/27,171.79 = 9,376.43/x
  3. Step 3: Cross multiply
    18,153.59x = 27,171.79 × 9,376.43
  4. Step 4: Simplify right side
    18,153.59x = 254,774,227.61
  5. Step 5: Solve for x
    x = 254,774,227.61/18,153.59
  6. Step 6: Final answer
    x = 14,034.38

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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.