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Finding the Fourth Proportional to 12,537.92, 18,696.38 and 12,425.49

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Solution

The fourth proportional to 12,537.92, 18,696.38 and 12,425.49 is: 18,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537.92 : 18,696.38 = 12,425.49 : x
  2. Step 2: Convert to fraction form
    12,537.92/18,696.38 = 12,425.49/x
  3. Step 3: Cross multiply
    12,537.92x = 18,696.38 × 12,425.49
  4. Step 4: Simplify right side
    12,537.92x = 232,311,620.60
  5. Step 5: Solve for x
    x = 232,311,620.60/12,537.92
  6. Step 6: Final answer
    x = 18,528.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.