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Finding the Fourth Proportional to 18,381.53, 25,364.54 and 10,827.27

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Solution

The fourth proportional to 18,381.53, 25,364.54 and 10,827.27 is: 14,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.53 : 25,364.54 = 10,827.27 : x
  2. Step 2: Convert to fraction form
    18,381.53/25,364.54 = 10,827.27/x
  3. Step 3: Cross multiply
    18,381.53x = 25,364.54 × 10,827.27
  4. Step 4: Simplify right side
    18,381.53x = 274,628,750.07
  5. Step 5: Solve for x
    x = 274,628,750.07/18,381.53
  6. Step 6: Final answer
    x = 14,940.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.