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Finding the Fourth Proportional to 16,616.40, 24,794.40 and 16,519.20

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Solution

The fourth proportional to 16,616.40, 24,794.40 and 16,519.20 is: 24,649.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.40 : 24,794.40 = 16,519.20 : x
  2. Step 2: Convert to fraction form
    16,616.40/24,794.40 = 16,519.20/x
  3. Step 3: Cross multiply
    16,616.40x = 24,794.40 × 16,519.20
  4. Step 4: Simplify right side
    16,616.40x = 409,583,652.48
  5. Step 5: Solve for x
    x = 409,583,652.48/16,616.40
  6. Step 6: Final answer
    x = 24,649.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.