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Finding the Fourth Proportional to 8,571,367.76, 11,836,454.28 and 5,520,825.68

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Solution

The fourth proportional to 8,571,367.76, 11,836,454.28 and 5,520,825.68 is: 7,623,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571,367.76 : 11,836,454.28 = 5,520,825.68 : x
  2. Step 2: Convert to fraction form
    8,571,367.76/11,836,454.28 = 5,520,825.68/x
  3. Step 3: Cross multiply
    8,571,367.76x = 11,836,454.28 × 5,520,825.68
  4. Step 4: Simplify right side
    8,571,367.76x = 65,347,000,749,169.91
  5. Step 5: Solve for x
    x = 65,347,000,749,169.91/8,571,367.76
  6. Step 6: Final answer
    x = 7,623,870.84

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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.