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Finding the Fourth Proportional to 14,655,794.16, 20,224,605.72 and 8,460,631.80

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Solution

The fourth proportional to 14,655,794.16, 20,224,605.72 and 8,460,631.80 is: 11,675,446.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655,794.16 : 20,224,605.72 = 8,460,631.80 : x
  2. Step 2: Convert to fraction form
    14,655,794.16/20,224,605.72 = 8,460,631.80/x
  3. Step 3: Cross multiply
    14,655,794.16x = 20,224,605.72 × 8,460,631.80
  4. Step 4: Simplify right side
    14,655,794.16x = 171,112,942,297,093.91
  5. Step 5: Solve for x
    x = 171,112,942,297,093.91/14,655,794.16
  6. Step 6: Final answer
    x = 11,675,446.61

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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.