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Finding the Fourth Proportional to 12,744.92, 17,584.98 and 7,437.80

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Solution

The fourth proportional to 12,744.92, 17,584.98 and 7,437.80 is: 10,262.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.92 : 17,584.98 = 7,437.80 : x
  2. Step 2: Convert to fraction form
    12,744.92/17,584.98 = 7,437.80/x
  3. Step 3: Cross multiply
    12,744.92x = 17,584.98 × 7,437.80
  4. Step 4: Simplify right side
    12,744.92x = 130,793,564.24
  5. Step 5: Solve for x
    x = 130,793,564.24/12,744.92
  6. Step 6: Final answer
    x = 10,262.41

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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.