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Finding the Fourth Proportional to 7,223,196.26, 9,967,794.90 and 3,959,899.04

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Solution

The fourth proportional to 7,223,196.26, 9,967,794.90 and 3,959,899.04 is: 5,464,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223,196.26 : 9,967,794.90 = 3,959,899.04 : x
  2. Step 2: Convert to fraction form
    7,223,196.26/9,967,794.90 = 3,959,899.04/x
  3. Step 3: Cross multiply
    7,223,196.26x = 9,967,794.90 × 3,959,899.04
  4. Step 4: Simplify right side
    7,223,196.26x = 39,471,461,455,426.90
  5. Step 5: Solve for x
    x = 39,471,461,455,426.90/7,223,196.26
  6. Step 6: Final answer
    x = 5,464,542.29

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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.