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Finding the Fourth Proportional to 16,311.20, 24,466.80 and 14,928.80

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Solution

The fourth proportional to 16,311.20, 24,466.80 and 14,928.80 is: 22,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,311.20 : 24,466.80 = 14,928.80 : x
  2. Step 2: Convert to fraction form
    16,311.20/24,466.80 = 14,928.80/x
  3. Step 3: Cross multiply
    16,311.20x = 24,466.80 × 14,928.80
  4. Step 4: Simplify right side
    16,311.20x = 365,259,963.84
  5. Step 5: Solve for x
    x = 365,259,963.84/16,311.20
  6. Step 6: Final answer
    x = 22,393.20

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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.