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Finding the Fourth Proportional to 5,997,863.60, 8,996,795.40 and 5,419,329.20

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Solution

The fourth proportional to 5,997,863.60, 8,996,795.40 and 5,419,329.20 is: 8,128,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,997,863.60 : 8,996,795.40 = 5,419,329.20 : x
  2. Step 2: Convert to fraction form
    5,997,863.60/8,996,795.40 = 5,419,329.20/x
  3. Step 3: Cross multiply
    5,997,863.60x = 8,996,795.40 × 5,419,329.20
  4. Step 4: Simplify right side
    5,997,863.60x = 48,756,596,017,645.69
  5. Step 5: Solve for x
    x = 48,756,596,017,645.69/5,997,863.60
  6. Step 6: Final answer
    x = 8,128,993.80

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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.