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Finding the Fourth Proportional to 6,437,796.63, 8,881,962.07 and 3,989,514.37

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Solution

The fourth proportional to 6,437,796.63, 8,881,962.07 and 3,989,514.37 is: 5,504,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,437,796.63 : 8,881,962.07 = 3,989,514.37 : x
  2. Step 2: Convert to fraction form
    6,437,796.63/8,881,962.07 = 3,989,514.37/x
  3. Step 3: Cross multiply
    6,437,796.63x = 8,881,962.07 × 3,989,514.37
  4. Step 4: Simplify right side
    6,437,796.63x = 35,434,715,293,430.11
  5. Step 5: Solve for x
    x = 35,434,715,293,430.11/6,437,796.63
  6. Step 6: Final answer
    x = 5,504,168.17

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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.