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Finding the Fourth Proportional to 7,224,178.23, 9,969,813.86 and 4,004,914.23

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Solution

The fourth proportional to 7,224,178.23, 9,969,813.86 and 4,004,914.23 is: 5,527,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,224,178.23 : 9,969,813.86 = 4,004,914.23 : x
  2. Step 2: Convert to fraction form
    7,224,178.23/9,969,813.86 = 4,004,914.23/x
  3. Step 3: Cross multiply
    7,224,178.23x = 9,969,813.86 × 4,004,914.23
  4. Step 4: Simplify right side
    7,224,178.23x = 39,928,249,378,340.66
  5. Step 5: Solve for x
    x = 39,928,249,378,340.66/7,224,178.23
  6. Step 6: Final answer
    x = 5,527,029.94

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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.