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Finding the Fourth Proportional to 4,435.60, 6,669.60 and 3,722.80

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Solution

The fourth proportional to 4,435.60, 6,669.60 and 3,722.80 is: 5,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,435.60 : 6,669.60 = 3,722.80 : x
  2. Step 2: Convert to fraction form
    4,435.60/6,669.60 = 3,722.80/x
  3. Step 3: Cross multiply
    4,435.60x = 6,669.60 × 3,722.80
  4. Step 4: Simplify right side
    4,435.60x = 24,829,586.88
  5. Step 5: Solve for x
    x = 24,829,586.88/4,435.60
  6. Step 6: Final answer
    x = 5,597.80

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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.