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Finding the Fourth Proportional to 14,581,705.50, 20,122,464.06 and 8,055,273.78

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Solution

The fourth proportional to 14,581,705.50, 20,122,464.06 and 8,055,273.78 is: 11,116,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,581,705.50 : 20,122,464.06 = 8,055,273.78 : x
  2. Step 2: Convert to fraction form
    14,581,705.50/20,122,464.06 = 8,055,273.78/x
  3. Step 3: Cross multiply
    14,581,705.50x = 20,122,464.06 × 8,055,273.78
  4. Step 4: Simplify right side
    14,581,705.50x = 162,091,957,131,510.34
  5. Step 5: Solve for x
    x = 162,091,957,131,510.34/14,581,705.50
  6. Step 6: Final answer
    x = 11,116,117.87

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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.