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Finding the Fourth Proportional to 10,868,644.80, 16,302,448.80 and 3,679,473.60

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Solution

The fourth proportional to 10,868,644.80, 16,302,448.80 and 3,679,473.60 is: 5,519,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868,644.80 : 16,302,448.80 = 3,679,473.60 : x
  2. Step 2: Convert to fraction form
    10,868,644.80/16,302,448.80 = 3,679,473.60/x
  3. Step 3: Cross multiply
    10,868,644.80x = 16,302,448.80 × 3,679,473.60
  4. Step 4: Simplify right side
    10,868,644.80x = 59,984,429,974,951.69
  5. Step 5: Solve for x
    x = 59,984,429,974,951.69/10,868,644.80
  6. Step 6: Final answer
    x = 5,519,034.90

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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.