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Finding the Fourth Proportional to 6,564,863.40, 9,840,296.70 and 2,519,788.20

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Solution

The fourth proportional to 6,564,863.40, 9,840,296.70 and 2,519,788.20 is: 3,776,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,564,863.40 : 9,840,296.70 = 2,519,788.20 : x
  2. Step 2: Convert to fraction form
    6,564,863.40/9,840,296.70 = 2,519,788.20/x
  3. Step 3: Cross multiply
    6,564,863.40x = 9,840,296.70 × 2,519,788.20
  4. Step 4: Simplify right side
    6,564,863.40x = 24,795,463,509,158.94
  5. Step 5: Solve for x
    x = 24,795,463,509,158.94/6,564,863.40
  6. Step 6: Final answer
    x = 3,776,996.11

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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.