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Finding the Fourth Proportional to 2,471.17, 3,708.22 and 912.26

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Solution

The fourth proportional to 2,471.17, 3,708.22 and 912.26 is: 1,368.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.17 : 3,708.22 = 912.26 : x
  2. Step 2: Convert to fraction form
    2,471.17/3,708.22 = 912.26/x
  3. Step 3: Cross multiply
    2,471.17x = 3,708.22 × 912.26
  4. Step 4: Simplify right side
    2,471.17x = 3,382,872.33
  5. Step 5: Solve for x
    x = 3,382,872.33/2,471.17
  6. Step 6: Final answer
    x = 1,368.93

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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.