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Finding the Fourth Proportional to 3,859.66, 5,324.37 and 2,440.96

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Solution

The fourth proportional to 3,859.66, 5,324.37 and 2,440.96 is: 3,367.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.66 : 5,324.37 = 2,440.96 : x
  2. Step 2: Convert to fraction form
    3,859.66/5,324.37 = 2,440.96/x
  3. Step 3: Cross multiply
    3,859.66x = 5,324.37 × 2,440.96
  4. Step 4: Simplify right side
    3,859.66x = 12,996,547.57
  5. Step 5: Solve for x
    x = 12,996,547.57/3,859.66
  6. Step 6: Final answer
    x = 3,367.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.