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Finding the Fourth Proportional to 13,891,502.80, 20,837,254.20 and 3,794,123.80

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Solution

The fourth proportional to 13,891,502.80, 20,837,254.20 and 3,794,123.80 is: 5,691,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891,502.80 : 20,837,254.20 = 3,794,123.80 : x
  2. Step 2: Convert to fraction form
    13,891,502.80/20,837,254.20 = 3,794,123.80/x
  3. Step 3: Cross multiply
    13,891,502.80x = 20,837,254.20 × 3,794,123.80
  4. Step 4: Simplify right side
    13,891,502.80x = 79,059,122,086,869.95
  5. Step 5: Solve for x
    x = 79,059,122,086,869.95/13,891,502.80
  6. Step 6: Final answer
    x = 5,691,185.70

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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.