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Finding the Fourth Proportional to 3,371.36, 5,056.76 and 906.17

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Solution

The fourth proportional to 3,371.36, 5,056.76 and 906.17 is: 1,359.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,371.36 : 5,056.76 = 906.17 : x
  2. Step 2: Convert to fraction form
    3,371.36/5,056.76 = 906.17/x
  3. Step 3: Cross multiply
    3,371.36x = 5,056.76 × 906.17
  4. Step 4: Simplify right side
    3,371.36x = 4,582,279.68
  5. Step 5: Solve for x
    x = 4,582,279.68/3,371.36
  6. Step 6: Final answer
    x = 1,359.18

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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.