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Finding the Fourth Proportional to 3,466.70, 5,200.20 and 3,220.66

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Solution

The fourth proportional to 3,466.70, 5,200.20 and 3,220.66 is: 4,831.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,466.70 : 5,200.20 = 3,220.66 : x
  2. Step 2: Convert to fraction form
    3,466.70/5,200.20 = 3,220.66/x
  3. Step 3: Cross multiply
    3,466.70x = 5,200.20 × 3,220.66
  4. Step 4: Simplify right side
    3,466.70x = 16,748,082.63
  5. Step 5: Solve for x
    x = 16,748,082.63/3,466.70
  6. Step 6: Final answer
    x = 4,831.13

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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.