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Finding the Fourth Proportional to 5,625,986.82, 7,763,854.42 and 3,047,679.06

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Solution

The fourth proportional to 5,625,986.82, 7,763,854.42 and 3,047,679.06 is: 4,205,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625,986.82 : 7,763,854.42 = 3,047,679.06 : x
  2. Step 2: Convert to fraction form
    5,625,986.82/7,763,854.42 = 3,047,679.06/x
  3. Step 3: Cross multiply
    5,625,986.82x = 7,763,854.42 × 3,047,679.06
  4. Step 4: Simplify right side
    5,625,986.82x = 23,661,736,540,722.45
  5. Step 5: Solve for x
    x = 23,661,736,540,722.45/5,625,986.82
  6. Step 6: Final answer
    x = 4,205,793.10

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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.