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Finding the Fourth Proportional to 17,766,912.80, 26,662,810.80 and 11,392,666.40

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Solution

The fourth proportional to 17,766,912.80, 26,662,810.80 and 11,392,666.40 is: 17,096,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,766,912.80 : 26,662,810.80 = 11,392,666.40 : x
  2. Step 2: Convert to fraction form
    17,766,912.80/26,662,810.80 = 11,392,666.40/x
  3. Step 3: Cross multiply
    17,766,912.80x = 26,662,810.80 × 11,392,666.40
  4. Step 4: Simplify right side
    17,766,912.80x = 303,760,508,730,717.12
  5. Step 5: Solve for x
    x = 303,760,508,730,717.12/17,766,912.80
  6. Step 6: Final answer
    x = 17,096,977.52

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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.