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Finding the Fourth Proportional to 5,114.16, 7,671.24 and 1,651.68

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Solution

The fourth proportional to 5,114.16, 7,671.24 and 1,651.68 is: 2,477.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,114.16 : 7,671.24 = 1,651.68 : x
  2. Step 2: Convert to fraction form
    5,114.16/7,671.24 = 1,651.68/x
  3. Step 3: Cross multiply
    5,114.16x = 7,671.24 × 1,651.68
  4. Step 4: Simplify right side
    5,114.16x = 12,670,433.68
  5. Step 5: Solve for x
    x = 12,670,433.68/5,114.16
  6. Step 6: Final answer
    x = 2,477.52

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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.