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Finding the Fourth Proportional to 12,732.48, 19,087.44 and 10,392.48

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Solution

The fourth proportional to 12,732.48, 19,087.44 and 10,392.48 is: 15,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,732.48 : 19,087.44 = 10,392.48 : x
  2. Step 2: Convert to fraction form
    12,732.48/19,087.44 = 10,392.48/x
  3. Step 3: Cross multiply
    12,732.48x = 19,087.44 × 10,392.48
  4. Step 4: Simplify right side
    12,732.48x = 198,365,838.45
  5. Step 5: Solve for x
    x = 198,365,838.45/12,732.48
  6. Step 6: Final answer
    x = 15,579.51

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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.