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Finding the Fourth Proportional to 5,661,917.80, 8,476,287.90 and 4,998,365.80

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Solution

The fourth proportional to 5,661,917.80, 8,476,287.90 and 4,998,365.80 is: 7,482,904.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661,917.80 : 8,476,287.90 = 4,998,365.80 : x
  2. Step 2: Convert to fraction form
    5,661,917.80/8,476,287.90 = 4,998,365.80/x
  3. Step 3: Cross multiply
    5,661,917.80x = 8,476,287.90 × 4,998,365.80
  4. Step 4: Simplify right side
    5,661,917.80x = 42,367,587,550,313.82
  5. Step 5: Solve for x
    x = 42,367,587,550,313.82/5,661,917.80
  6. Step 6: Final answer
    x = 7,482,904.03

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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.