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Finding the Fourth Proportional to 3,272.67, 4,909.05 and 964.17

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Solution

The fourth proportional to 3,272.67, 4,909.05 and 964.17 is: 1,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.67 : 4,909.05 = 964.17 : x
  2. Step 2: Convert to fraction form
    3,272.67/4,909.05 = 964.17/x
  3. Step 3: Cross multiply
    3,272.67x = 4,909.05 × 964.17
  4. Step 4: Simplify right side
    3,272.67x = 4,733,158.74
  5. Step 5: Solve for x
    x = 4,733,158.74/3,272.67
  6. Step 6: Final answer
    x = 1,446.27

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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.