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Finding the Fourth Proportional to 6,687,986.92, 9,229,476.18 and 3,632,223.04

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Solution

The fourth proportional to 6,687,986.92, 9,229,476.18 and 3,632,223.04 is: 5,012,497.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687,986.92 : 9,229,476.18 = 3,632,223.04 : x
  2. Step 2: Convert to fraction form
    6,687,986.92/9,229,476.18 = 3,632,223.04/x
  3. Step 3: Cross multiply
    6,687,986.92x = 9,229,476.18 × 3,632,223.04
  4. Step 4: Simplify right side
    6,687,986.92x = 33,523,516,018,674.33
  5. Step 5: Solve for x
    x = 33,523,516,018,674.33/6,687,986.92
  6. Step 6: Final answer
    x = 5,012,497.25

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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.