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Finding the Fourth Proportional to 6,657,551.76, 9,977,499.65 and 3,418,958.73

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Solution

The fourth proportional to 6,657,551.76, 9,977,499.65 and 3,418,958.73 is: 5,123,904.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657,551.76 : 9,977,499.65 = 3,418,958.73 : x
  2. Step 2: Convert to fraction form
    6,657,551.76/9,977,499.65 = 3,418,958.73/x
  3. Step 3: Cross multiply
    6,657,551.76x = 9,977,499.65 × 3,418,958.73
  4. Step 4: Simplify right side
    6,657,551.76x = 34,112,659,514,844.65
  5. Step 5: Solve for x
    x = 34,112,659,514,844.65/6,657,551.76
  6. Step 6: Final answer
    x = 5,123,904.51

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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.