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Finding the Fourth Proportional to 8,323,728.80, 12,486,424.80 and 2,258,556.80

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Solution

The fourth proportional to 8,323,728.80, 12,486,424.80 and 2,258,556.80 is: 3,388,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,323,728.80 : 12,486,424.80 = 2,258,556.80 : x
  2. Step 2: Convert to fraction form
    8,323,728.80/12,486,424.80 = 2,258,556.80/x
  3. Step 3: Cross multiply
    8,323,728.80x = 12,486,424.80 × 2,258,556.80
  4. Step 4: Simplify right side
    8,323,728.80x = 28,201,299,639,728.64
  5. Step 5: Solve for x
    x = 28,201,299,639,728.64/8,323,728.80
  6. Step 6: Final answer
    x = 3,388,060.85

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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.