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Finding the Fourth Proportional to 18,398,673.20, 27,598,009.80 and 16,607,082.80

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Solution

The fourth proportional to 18,398,673.20, 27,598,009.80 and 16,607,082.80 is: 24,910,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398,673.20 : 27,598,009.80 = 16,607,082.80 : x
  2. Step 2: Convert to fraction form
    18,398,673.20/27,598,009.80 = 16,607,082.80/x
  3. Step 3: Cross multiply
    18,398,673.20x = 27,598,009.80 × 16,607,082.80
  4. Step 4: Simplify right side
    18,398,673.20x = 458,322,433,863,811.50
  5. Step 5: Solve for x
    x = 458,322,433,863,811.50/18,398,673.20
  6. Step 6: Final answer
    x = 24,910,624.20

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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.