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Finding the Fourth Proportional to 8,656,607.40, 11,946,236.40 and 5,394,740.64

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Solution

The fourth proportional to 8,656,607.40, 11,946,236.40 and 5,394,740.64 is: 7,444,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656,607.40 : 11,946,236.40 = 5,394,740.64 : x
  2. Step 2: Convert to fraction form
    8,656,607.40/11,946,236.40 = 5,394,740.64/x
  3. Step 3: Cross multiply
    8,656,607.40x = 11,946,236.40 × 5,394,740.64
  4. Step 4: Simplify right side
    8,656,607.40x = 64,446,847,002,127.30
  5. Step 5: Solve for x
    x = 64,446,847,002,127.30/8,656,607.40
  6. Step 6: Final answer
    x = 7,444,815.74

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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.