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Finding the Fourth Proportional to 14,621.10, 21,940.04 and 14,502.20

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Solution

The fourth proportional to 14,621.10, 21,940.04 and 14,502.20 is: 21,761.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.10 : 21,940.04 = 14,502.20 : x
  2. Step 2: Convert to fraction form
    14,621.10/21,940.04 = 14,502.20/x
  3. Step 3: Cross multiply
    14,621.10x = 21,940.04 × 14,502.20
  4. Step 4: Simplify right side
    14,621.10x = 318,178,665.88
  5. Step 5: Solve for x
    x = 318,178,665.88/14,621.10
  6. Step 6: Final answer
    x = 21,761.61

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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.