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Finding the Fourth Proportional to 19,600.31, 27,048.62 and 10,647.88

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Solution

The fourth proportional to 19,600.31, 27,048.62 and 10,647.88 is: 14,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,600.31 : 27,048.62 = 10,647.88 : x
  2. Step 2: Convert to fraction form
    19,600.31/27,048.62 = 10,647.88/x
  3. Step 3: Cross multiply
    19,600.31x = 27,048.62 × 10,647.88
  4. Step 4: Simplify right side
    19,600.31x = 288,010,406.69
  5. Step 5: Solve for x
    x = 288,010,406.69/19,600.31
  6. Step 6: Final answer
    x = 14,694.18

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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.