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Finding the Fourth Proportional to 14,698,706.50, 20,284,214.97 and 8,260,178.50

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Solution

The fourth proportional to 14,698,706.50, 20,284,214.97 and 8,260,178.50 is: 11,399,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,698,706.50 : 20,284,214.97 = 8,260,178.50 : x
  2. Step 2: Convert to fraction form
    14,698,706.50/20,284,214.97 = 8,260,178.50/x
  3. Step 3: Cross multiply
    14,698,706.50x = 20,284,214.97 × 8,260,178.50
  4. Step 4: Simplify right side
    14,698,706.50x = 167,551,236,384,572.12
  5. Step 5: Solve for x
    x = 167,551,236,384,572.12/14,698,706.50
  6. Step 6: Final answer
    x = 11,399,046.33

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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.