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Finding the Fourth Proportional to 14,978,960.91, 20,670,764.36 and 8,363,652.03

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Solution

The fourth proportional to 14,978,960.91, 20,670,764.36 and 8,363,652.03 is: 11,541,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978,960.91 : 20,670,764.36 = 8,363,652.03 : x
  2. Step 2: Convert to fraction form
    14,978,960.91/20,670,764.36 = 8,363,652.03/x
  3. Step 3: Cross multiply
    14,978,960.91x = 20,670,764.36 × 8,363,652.03
  4. Step 4: Simplify right side
    14,978,960.91x = 172,883,080,259,347.41
  5. Step 5: Solve for x
    x = 172,883,080,259,347.41/14,978,960.91
  6. Step 6: Final answer
    x = 11,541,727.18

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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.