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Finding the Fourth Proportional to 13,658,606.40, 20,488,946.40 and 4,073,236.80

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Solution

The fourth proportional to 13,658,606.40, 20,488,946.40 and 4,073,236.80 is: 6,110,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658,606.40 : 20,488,946.40 = 4,073,236.80 : x
  2. Step 2: Convert to fraction form
    13,658,606.40/20,488,946.40 = 4,073,236.80/x
  3. Step 3: Cross multiply
    13,658,606.40x = 20,488,946.40 × 4,073,236.80
  4. Step 4: Simplify right side
    13,658,606.40x = 83,456,330,469,707.52
  5. Step 5: Solve for x
    x = 83,456,330,469,707.52/13,658,606.40
  6. Step 6: Final answer
    x = 6,110,164.39

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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.