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Finding the Fourth Proportional to 6,644,375.20, 9,963,646.80 and 3,048,947.20

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Solution

The fourth proportional to 6,644,375.20, 9,963,646.80 and 3,048,947.20 is: 4,572,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644,375.20 : 9,963,646.80 = 3,048,947.20 : x
  2. Step 2: Convert to fraction form
    6,644,375.20/9,963,646.80 = 3,048,947.20/x
  3. Step 3: Cross multiply
    6,644,375.20x = 9,963,646.80 × 3,048,947.20
  4. Step 4: Simplify right side
    6,644,375.20x = 30,378,633,012,648.96
  5. Step 5: Solve for x
    x = 30,378,633,012,648.96/6,644,375.20
  6. Step 6: Final answer
    x = 4,572,082.72

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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.