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Finding the Fourth Proportional to 18,573,443.60, 27,860,165.40 and 5,793,927.80

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Solution

The fourth proportional to 18,573,443.60, 27,860,165.40 and 5,793,927.80 is: 8,690,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573,443.60 : 27,860,165.40 = 5,793,927.80 : x
  2. Step 2: Convert to fraction form
    18,573,443.60/27,860,165.40 = 5,793,927.80/x
  3. Step 3: Cross multiply
    18,573,443.60x = 27,860,165.40 × 5,793,927.80
  4. Step 4: Simplify right side
    18,573,443.60x = 161,419,786,823,658.09
  5. Step 5: Solve for x
    x = 161,419,786,823,658.09/18,573,443.60
  6. Step 6: Final answer
    x = 8,690,891.70

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1.5x scale

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.