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Finding the Fourth Proportional to 18,389,601.60, 27,584,402.40 and 16,405,555.20

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Solution

The fourth proportional to 18,389,601.60, 27,584,402.40 and 16,405,555.20 is: 24,608,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389,601.60 : 27,584,402.40 = 16,405,555.20 : x
  2. Step 2: Convert to fraction form
    18,389,601.60/27,584,402.40 = 16,405,555.20/x
  3. Step 3: Cross multiply
    18,389,601.60x = 27,584,402.40 × 16,405,555.20
  4. Step 4: Simplify right side
    18,389,601.60x = 452,537,436,232,212.44
  5. Step 5: Solve for x
    x = 452,537,436,232,212.44/18,389,601.60
  6. Step 6: Final answer
    x = 24,608,332.80

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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.