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Finding the Fourth Proportional to 18,682,264.40, 28,024,271.40 and 5,903,769.20

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Solution

The fourth proportional to 18,682,264.40, 28,024,271.40 and 5,903,769.20 is: 8,855,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,264.40 : 28,024,271.40 = 5,903,769.20 : x
  2. Step 2: Convert to fraction form
    18,682,264.40/28,024,271.40 = 5,903,769.20/x
  3. Step 3: Cross multiply
    18,682,264.40x = 28,024,271.40 × 5,903,769.20
  4. Step 4: Simplify right side
    18,682,264.40x = 165,448,830,343,760.88
  5. Step 5: Solve for x
    x = 165,448,830,343,760.88/18,682,264.40
  6. Step 6: Final answer
    x = 8,855,930.24

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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.