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Finding the Fourth Proportional to 2,317.54, 3,474.17 and 912.92

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Solution

The fourth proportional to 2,317.54, 3,474.17 and 912.92 is: 1,368.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.54 : 3,474.17 = 912.92 : x
  2. Step 2: Convert to fraction form
    2,317.54/3,474.17 = 912.92/x
  3. Step 3: Cross multiply
    2,317.54x = 3,474.17 × 912.92
  4. Step 4: Simplify right side
    2,317.54x = 3,171,637.74
  5. Step 5: Solve for x
    x = 3,171,637.74/2,317.54
  6. Step 6: Final answer
    x = 1,368.54

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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.