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Finding the Fourth Proportional to 19,709,552.40, 29,580,917.40 and 9,620,797.20

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Solution

The fourth proportional to 19,709,552.40, 29,580,917.40 and 9,620,797.20 is: 14,439,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,709,552.40 : 29,580,917.40 = 9,620,797.20 : x
  2. Step 2: Convert to fraction form
    19,709,552.40/29,580,917.40 = 9,620,797.20/x
  3. Step 3: Cross multiply
    19,709,552.40x = 29,580,917.40 × 9,620,797.20
  4. Step 4: Simplify right side
    19,709,552.40x = 284,592,007,295,351.25
  5. Step 5: Solve for x
    x = 284,592,007,295,351.25/19,709,552.40
  6. Step 6: Final answer
    x = 14,439,293.27

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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.