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Finding the Fourth Proportional to 9,843,840.80, 13,747,784.80 and 9,843,840.80

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Solution

The fourth proportional to 9,843,840.80, 13,747,784.80 and 9,843,840.80 is: 13,747,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843,840.80 : 13,747,784.80 = 9,843,840.80 : x
  2. Step 2: Convert to fraction form
    9,843,840.80/13,747,784.80 = 9,843,840.80/x
  3. Step 3: Cross multiply
    9,843,840.80x = 13,747,784.80 × 9,843,840.80
  4. Step 4: Simplify right side
    9,843,840.80x = 135,331,004,923,859.86
  5. Step 5: Solve for x
    x = 135,331,004,923,859.86/9,843,840.80
  6. Step 6: Final answer
    x = 13,747,784.80

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.