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Finding the Fourth Proportional to 7,950,232.06, 10,978,139.45 and 7,693,147.51

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Solution

The fourth proportional to 7,950,232.06, 10,978,139.45 and 7,693,147.51 is: 10,623,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950,232.06 : 10,978,139.45 = 7,693,147.51 : x
  2. Step 2: Convert to fraction form
    7,950,232.06/10,978,139.45 = 7,693,147.51/x
  3. Step 3: Cross multiply
    7,950,232.06x = 10,978,139.45 × 7,693,147.51
  4. Step 4: Simplify right side
    7,950,232.06x = 84,456,446,080,843.83
  5. Step 5: Solve for x
    x = 84,456,446,080,843.83/7,950,232.06
  6. Step 6: Final answer
    x = 10,623,142.26

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1.5x scale

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.