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Finding the Fourth Proportional to 8,254,582.80, 11,392,676.60 and 4,816,813.20

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Solution

The fourth proportional to 8,254,582.80, 11,392,676.60 and 4,816,813.20 is: 6,647,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,254,582.80 : 11,392,676.60 = 4,816,813.20 : x
  2. Step 2: Convert to fraction form
    8,254,582.80/11,392,676.60 = 4,816,813.20/x
  3. Step 3: Cross multiply
    8,254,582.80x = 11,392,676.60 × 4,816,813.20
  4. Step 4: Simplify right side
    8,254,582.80x = 54,876,395,030,211.12
  5. Step 5: Solve for x
    x = 54,876,395,030,211.12/8,254,582.80
  6. Step 6: Final answer
    x = 6,647,991.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.