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Finding the Fourth Proportional to 14,950.30, 20,614.30 and 11,167.09

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Solution

The fourth proportional to 14,950.30, 20,614.30 and 11,167.09 is: 15,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,950.30 : 20,614.30 = 11,167.09 : x
  2. Step 2: Convert to fraction form
    14,950.30/20,614.30 = 11,167.09/x
  3. Step 3: Cross multiply
    14,950.30x = 20,614.30 × 11,167.09
  4. Step 4: Simplify right side
    14,950.30x = 230,201,721.91
  5. Step 5: Solve for x
    x = 230,201,721.91/14,950.30
  6. Step 6: Final answer
    x = 15,397.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.