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Finding the Fourth Proportional to 9,796.70, 14,695.05 and 3,221.30

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Solution

The fourth proportional to 9,796.70, 14,695.05 and 3,221.30 is: 4,831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,796.70 : 14,695.05 = 3,221.30 : x
  2. Step 2: Convert to fraction form
    9,796.70/14,695.05 = 3,221.30/x
  3. Step 3: Cross multiply
    9,796.70x = 14,695.05 × 3,221.30
  4. Step 4: Simplify right side
    9,796.70x = 47,337,164.57
  5. Step 5: Solve for x
    x = 47,337,164.57/9,796.70
  6. Step 6: Final answer
    x = 4,831.95

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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.