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Finding the Fourth Proportional to 13,892,327.70, 20,838,491.55 and 3,794,948.70

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Solution

The fourth proportional to 13,892,327.70, 20,838,491.55 and 3,794,948.70 is: 5,692,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892,327.70 : 20,838,491.55 = 3,794,948.70 : x
  2. Step 2: Convert to fraction form
    13,892,327.70/20,838,491.55 = 3,794,948.70/x
  3. Step 3: Cross multiply
    13,892,327.70x = 20,838,491.55 × 3,794,948.70
  4. Step 4: Simplify right side
    13,892,327.70x = 79,081,006,417,633.48
  5. Step 5: Solve for x
    x = 79,081,006,417,633.48/13,892,327.70
  6. Step 6: Final answer
    x = 5,692,423.05

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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.