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Finding the Fourth Proportional to 18,397,722.60, 27,596,583.90 and 11,205,554.40

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Solution

The fourth proportional to 18,397,722.60, 27,596,583.90 and 11,205,554.40 is: 16,808,331.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397,722.60 : 27,596,583.90 = 11,205,554.40 : x
  2. Step 2: Convert to fraction form
    18,397,722.60/27,596,583.90 = 11,205,554.40/x
  3. Step 3: Cross multiply
    18,397,722.60x = 27,596,583.90 × 11,205,554.40
  4. Step 4: Simplify right side
    18,397,722.60x = 309,235,022,145,614.12
  5. Step 5: Solve for x
    x = 309,235,022,145,614.12/18,397,722.60
  6. Step 6: Final answer
    x = 16,808,331.60

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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.