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Finding the Fourth Proportional to 7,950,230.06, 10,978,136.69 and 7,693,145.51

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Solution

The fourth proportional to 7,950,230.06, 10,978,136.69 and 7,693,145.51 is: 10,623,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950,230.06 : 10,978,136.69 = 7,693,145.51 : x
  2. Step 2: Convert to fraction form
    7,950,230.06/10,978,136.69 = 7,693,145.51/x
  3. Step 3: Cross multiply
    7,950,230.06x = 10,978,136.69 × 7,693,145.51
  4. Step 4: Simplify right side
    7,950,230.06x = 84,456,402,891,483.36
  5. Step 5: Solve for x
    x = 84,456,402,891,483.36/7,950,230.06
  6. Step 6: Final answer
    x = 10,623,139.49

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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.