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Finding the Fourth Proportional to 18,732.84, 25,845.12 and 12,362.60

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Solution

The fourth proportional to 18,732.84, 25,845.12 and 12,362.60 is: 17,056.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.84 : 25,845.12 = 12,362.60 : x
  2. Step 2: Convert to fraction form
    18,732.84/25,845.12 = 12,362.60/x
  3. Step 3: Cross multiply
    18,732.84x = 25,845.12 × 12,362.60
  4. Step 4: Simplify right side
    18,732.84x = 319,512,751.29
  5. Step 5: Solve for x
    x = 319,512,751.29/18,732.84
  6. Step 6: Final answer
    x = 17,056.29

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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.