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Finding the Fourth Proportional to 16,616.16, 22,919.22 and 13,253.04

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Solution

The fourth proportional to 16,616.16, 22,919.22 and 13,253.04 is: 18,280.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.16 : 22,919.22 = 13,253.04 : x
  2. Step 2: Convert to fraction form
    16,616.16/22,919.22 = 13,253.04/x
  3. Step 3: Cross multiply
    16,616.16x = 22,919.22 × 13,253.04
  4. Step 4: Simplify right side
    16,616.16x = 303,749,339.43
  5. Step 5: Solve for x
    x = 303,749,339.43/16,616.16
  6. Step 6: Final answer
    x = 18,280.36

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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.