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Finding the Fourth Proportional to 8,763,948.80, 13,123,804.80 and 6,994,476.80

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Solution

The fourth proportional to 8,763,948.80, 13,123,804.80 and 6,994,476.80 is: 10,474,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763,948.80 : 13,123,804.80 = 6,994,476.80 : x
  2. Step 2: Convert to fraction form
    8,763,948.80/13,123,804.80 = 6,994,476.80/x
  3. Step 3: Cross multiply
    8,763,948.80x = 13,123,804.80 × 6,994,476.80
  4. Step 4: Simplify right side
    8,763,948.80x = 91,794,148,201,328.64
  5. Step 5: Solve for x
    x = 91,794,148,201,328.64/8,763,948.80
  6. Step 6: Final answer
    x = 10,474,062.58

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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.