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Finding the Fourth Proportional to 5,972,863.80, 8,959,328.10 and 1,485,139.80

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Solution

The fourth proportional to 5,972,863.80, 8,959,328.10 and 1,485,139.80 is: 2,227,717.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,972,863.80 : 8,959,328.10 = 1,485,139.80 : x
  2. Step 2: Convert to fraction form
    5,972,863.80/8,959,328.10 = 1,485,139.80/x
  3. Step 3: Cross multiply
    5,972,863.80x = 8,959,328.10 × 1,485,139.80
  4. Step 4: Simplify right side
    5,972,863.80x = 13,305,854,742,568.38
  5. Step 5: Solve for x
    x = 13,305,854,742,568.38/5,972,863.80
  6. Step 6: Final answer
    x = 2,227,717.76

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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.