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Finding the Fourth Proportional to 6,936,429.34, 9,571,978.26 and 3,838,663.00

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Solution

The fourth proportional to 6,936,429.34, 9,571,978.26 and 3,838,663.00 is: 5,297,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936,429.34 : 9,571,978.26 = 3,838,663.00 : x
  2. Step 2: Convert to fraction form
    6,936,429.34/9,571,978.26 = 3,838,663.00/x
  3. Step 3: Cross multiply
    6,936,429.34x = 9,571,978.26 × 3,838,663.00
  4. Step 4: Simplify right side
    6,936,429.34x = 36,743,598,759,536.44
  5. Step 5: Solve for x
    x = 36,743,598,759,536.44/6,936,429.34
  6. Step 6: Final answer
    x = 5,297,192.11

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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.