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Finding the Fourth Proportional to 5,671.24, 7,826.52 and 3,153.64

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Solution

The fourth proportional to 5,671.24, 7,826.52 and 3,153.64 is: 4,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.24 : 7,826.52 = 3,153.64 : x
  2. Step 2: Convert to fraction form
    5,671.24/7,826.52 = 3,153.64/x
  3. Step 3: Cross multiply
    5,671.24x = 7,826.52 × 3,153.64
  4. Step 4: Simplify right side
    5,671.24x = 24,682,048.14
  5. Step 5: Solve for x
    x = 24,682,048.14/5,671.24
  6. Step 6: Final answer
    x = 4,352.15

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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.