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Finding the Fourth Proportional to 14,640.10, 21,974.55 and 7,252.90

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Solution

The fourth proportional to 14,640.10, 21,974.55 and 7,252.90 is: 10,886.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.10 : 21,974.55 = 7,252.90 : x
  2. Step 2: Convert to fraction form
    14,640.10/21,974.55 = 7,252.90/x
  3. Step 3: Cross multiply
    14,640.10x = 21,974.55 × 7,252.90
  4. Step 4: Simplify right side
    14,640.10x = 159,379,213.70
  5. Step 5: Solve for x
    x = 159,379,213.70/14,640.10
  6. Step 6: Final answer
    x = 10,886.48

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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.