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Finding the Fourth Proportional to 19,682,605.80, 29,523,908.70 and 12,084,935.40

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Solution

The fourth proportional to 19,682,605.80, 29,523,908.70 and 12,084,935.40 is: 18,127,403.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682,605.80 : 29,523,908.70 = 12,084,935.40 : x
  2. Step 2: Convert to fraction form
    19,682,605.80/29,523,908.70 = 12,084,935.40/x
  3. Step 3: Cross multiply
    19,682,605.80x = 29,523,908.70 × 12,084,935.40
  4. Step 4: Simplify right side
    19,682,605.80x = 356,794,529,394,998
  5. Step 5: Solve for x
    x = 356,794,529,394,998/19,682,605.80
  6. Step 6: Final answer
    x = 18,127,403.10

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1.5x scale

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.