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Finding the Fourth Proportional to 5,671.28, 8,506.92 and 3,355.76

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Solution

The fourth proportional to 5,671.28, 8,506.92 and 3,355.76 is: 5,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.28 : 8,506.92 = 3,355.76 : x
  2. Step 2: Convert to fraction form
    5,671.28/8,506.92 = 3,355.76/x
  3. Step 3: Cross multiply
    5,671.28x = 8,506.92 × 3,355.76
  4. Step 4: Simplify right side
    5,671.28x = 28,547,181.86
  5. Step 5: Solve for x
    x = 28,547,181.86/5,671.28
  6. Step 6: Final answer
    x = 5,033.64

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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.