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Finding the Fourth Proportional to 3,966.02, 5,472.68 and 2,197.45

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Solution

The fourth proportional to 3,966.02, 5,472.68 and 2,197.45 is: 3,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.02 : 5,472.68 = 2,197.45 : x
  2. Step 2: Convert to fraction form
    3,966.02/5,472.68 = 2,197.45/x
  3. Step 3: Cross multiply
    3,966.02x = 5,472.68 × 2,197.45
  4. Step 4: Simplify right side
    3,966.02x = 12,025,940.67
  5. Step 5: Solve for x
    x = 12,025,940.67/3,966.02
  6. Step 6: Final answer
    x = 3,032.24

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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.