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Finding the Fourth Proportional to 8,079,614.80, 12,126,031.80 and 8,016,629.20

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Solution

The fourth proportional to 8,079,614.80, 12,126,031.80 and 8,016,629.20 is: 12,031,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079,614.80 : 12,126,031.80 = 8,016,629.20 : x
  2. Step 2: Convert to fraction form
    8,079,614.80/12,126,031.80 = 8,016,629.20/x
  3. Step 3: Cross multiply
    8,079,614.80x = 12,126,031.80 × 8,016,629.20
  4. Step 4: Simplify right side
    8,079,614.80x = 97,209,900,608,008.56
  5. Step 5: Solve for x
    x = 97,209,900,608,008.56/8,079,614.80
  6. Step 6: Final answer
    x = 12,031,501.87

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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.