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Finding the Fourth Proportional to 18,593,691.40, 27,890,537.10 and 10,090,635.40

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Solution

The fourth proportional to 18,593,691.40, 27,890,537.10 and 10,090,635.40 is: 15,135,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593,691.40 : 27,890,537.10 = 10,090,635.40 : x
  2. Step 2: Convert to fraction form
    18,593,691.40/27,890,537.10 = 10,090,635.40/x
  3. Step 3: Cross multiply
    18,593,691.40x = 27,890,537.10 × 10,090,635.40
  4. Step 4: Simplify right side
    18,593,691.40x = 281,433,240,986,273.38
  5. Step 5: Solve for x
    x = 281,433,240,986,273.38/18,593,691.40
  6. Step 6: Final answer
    x = 15,135,953.10

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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.