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Finding the Fourth Proportional to 14,491,501.20, 21,737,251.80 and 13,782,913.20

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Solution

The fourth proportional to 14,491,501.20, 21,737,251.80 and 13,782,913.20 is: 20,674,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,491,501.20 : 21,737,251.80 = 13,782,913.20 : x
  2. Step 2: Convert to fraction form
    14,491,501.20/21,737,251.80 = 13,782,913.20/x
  3. Step 3: Cross multiply
    14,491,501.20x = 21,737,251.80 × 13,782,913.20
  4. Step 4: Simplify right side
    14,491,501.20x = 299,602,654,765,943.75
  5. Step 5: Solve for x
    x = 299,602,654,765,943.75/14,491,501.20
  6. Step 6: Final answer
    x = 20,674,369.80

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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.