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Finding the Fourth Proportional to 9,072,912.90, 13,693,378.94 and 9,072,912.90

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Solution

The fourth proportional to 9,072,912.90, 13,693,378.94 and 9,072,912.90 is: 13,693,378.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,072,912.90 : 13,693,378.94 = 9,072,912.90 : x
  2. Step 2: Convert to fraction form
    9,072,912.90/13,693,378.94 = 9,072,912.90/x
  3. Step 3: Cross multiply
    9,072,912.90x = 13,693,378.94 × 9,072,912.90
  4. Step 4: Simplify right side
    9,072,912.90x = 124,238,834,383,949.77
  5. Step 5: Solve for x
    x = 124,238,834,383,949.77/9,072,912.90
  6. Step 6: Final answer
    x = 13,693,378.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.