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Finding the Fourth Proportional to 7,216,688.93, 9,958,612.23 and 3,952,935.47

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Solution

The fourth proportional to 7,216,688.93, 9,958,612.23 and 3,952,935.47 is: 5,454,821.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216,688.93 : 9,958,612.23 = 3,952,935.47 : x
  2. Step 2: Convert to fraction form
    7,216,688.93/9,958,612.23 = 3,952,935.47/x
  3. Step 3: Cross multiply
    7,216,688.93x = 9,958,612.23 × 3,952,935.47
  4. Step 4: Simplify right side
    7,216,688.93x = 39,365,751,540,839.33
  5. Step 5: Solve for x
    x = 39,365,751,540,839.33/7,216,688.93
  6. Step 6: Final answer
    x = 5,454,821.73

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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.