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Finding the Fourth Proportional to 3,225.74, 4,451.76 and 1,966.68

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Solution

The fourth proportional to 3,225.74, 4,451.76 and 1,966.68 is: 2,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.74 : 4,451.76 = 1,966.68 : x
  2. Step 2: Convert to fraction form
    3,225.74/4,451.76 = 1,966.68/x
  3. Step 3: Cross multiply
    3,225.74x = 4,451.76 × 1,966.68
  4. Step 4: Simplify right side
    3,225.74x = 8,755,187.36
  5. Step 5: Solve for x
    x = 8,755,187.36/3,225.74
  6. Step 6: Final answer
    x = 2,714.16

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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.