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Finding the Fourth Proportional to 12,410.92, 18,616.20 and 5,015.20

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Solution

The fourth proportional to 12,410.92, 18,616.20 and 5,015.20 is: 7,522.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,410.92 : 18,616.20 = 5,015.20 : x
  2. Step 2: Convert to fraction form
    12,410.92/18,616.20 = 5,015.20/x
  3. Step 3: Cross multiply
    12,410.92x = 18,616.20 × 5,015.20
  4. Step 4: Simplify right side
    12,410.92x = 93,363,966.24
  5. Step 5: Solve for x
    x = 93,363,966.24/12,410.92
  6. Step 6: Final answer
    x = 7,522.73

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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.