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Finding the Fourth Proportional to 5,708.71, 8,561.67 and 1,960.07

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Solution

The fourth proportional to 5,708.71, 8,561.67 and 1,960.07 is: 2,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.71 : 8,561.67 = 1,960.07 : x
  2. Step 2: Convert to fraction form
    5,708.71/8,561.67 = 1,960.07/x
  3. Step 3: Cross multiply
    5,708.71x = 8,561.67 × 1,960.07
  4. Step 4: Simplify right side
    5,708.71x = 16,781,422.36
  5. Step 5: Solve for x
    x = 16,781,422.36/5,708.71
  6. Step 6: Final answer
    x = 2,939.62

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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.