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Finding the Fourth Proportional to 12,473.89, 18,710.47 and 3,708.97

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Solution

The fourth proportional to 12,473.89, 18,710.47 and 3,708.97 is: 5,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.89 : 18,710.47 = 3,708.97 : x
  2. Step 2: Convert to fraction form
    12,473.89/18,710.47 = 3,708.97/x
  3. Step 3: Cross multiply
    12,473.89x = 18,710.47 × 3,708.97
  4. Step 4: Simplify right side
    12,473.89x = 69,396,571.92
  5. Step 5: Solve for x
    x = 69,396,571.92/12,473.89
  6. Step 6: Final answer
    x = 5,563.35

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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.