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Finding the Fourth Proportional to 5,559.68, 7,671.72 and 3,201.68

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Solution

The fourth proportional to 5,559.68, 7,671.72 and 3,201.68 is: 4,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,559.68 : 7,671.72 = 3,201.68 : x
  2. Step 2: Convert to fraction form
    5,559.68/7,671.72 = 3,201.68/x
  3. Step 3: Cross multiply
    5,559.68x = 7,671.72 × 3,201.68
  4. Step 4: Simplify right side
    5,559.68x = 24,562,392.49
  5. Step 5: Solve for x
    x = 24,562,392.49/5,559.68
  6. Step 6: Final answer
    x = 4,417.95

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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.