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Finding the Fourth Proportional to 3,959.72, 5,466.16 and 2,366.92

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Solution

The fourth proportional to 3,959.72, 5,466.16 and 2,366.92 is: 3,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.72 : 5,466.16 = 2,366.92 : x
  2. Step 2: Convert to fraction form
    3,959.72/5,466.16 = 2,366.92/x
  3. Step 3: Cross multiply
    3,959.72x = 5,466.16 × 2,366.92
  4. Step 4: Simplify right side
    3,959.72x = 12,937,963.43
  5. Step 5: Solve for x
    x = 12,937,963.43/3,959.72
  6. Step 6: Final answer
    x = 3,267.39

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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.