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Finding the Fourth Proportional to 14,604.80, 21,874.80 and 11,307.20

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Solution

The fourth proportional to 14,604.80, 21,874.80 and 11,307.20 is: 16,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,604.80 : 21,874.80 = 11,307.20 : x
  2. Step 2: Convert to fraction form
    14,604.80/21,874.80 = 11,307.20/x
  3. Step 3: Cross multiply
    14,604.80x = 21,874.80 × 11,307.20
  4. Step 4: Simplify right side
    14,604.80x = 247,342,738.56
  5. Step 5: Solve for x
    x = 247,342,738.56/14,604.80
  6. Step 6: Final answer
    x = 16,935.72

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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.