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Finding the Fourth Proportional to 13,801,857.30, 20,706,513.30 and 4,216,974.48

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Solution

The fourth proportional to 13,801,857.30, 20,706,513.30 and 4,216,974.48 is: 6,326,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,801,857.30 : 20,706,513.30 = 4,216,974.48 : x
  2. Step 2: Convert to fraction form
    13,801,857.30/20,706,513.30 = 4,216,974.48/x
  3. Step 3: Cross multiply
    13,801,857.30x = 20,706,513.30 × 4,216,974.48
  4. Step 4: Simplify right side
    13,801,857.30x = 87,318,838,155,880.59
  5. Step 5: Solve for x
    x = 87,318,838,155,880.59/13,801,857.30
  6. Step 6: Final answer
    x = 6,326,600.56

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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.