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Finding the Fourth Proportional to 6,800,987.46, 9,384,648.01 and 3,859,869.16

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Solution

The fourth proportional to 6,800,987.46, 9,384,648.01 and 3,859,869.16 is: 5,326,213.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800,987.46 : 9,384,648.01 = 3,859,869.16 : x
  2. Step 2: Convert to fraction form
    6,800,987.46/9,384,648.01 = 3,859,869.16/x
  3. Step 3: Cross multiply
    6,800,987.46x = 9,384,648.01 × 3,859,869.16
  4. Step 4: Simplify right side
    6,800,987.46x = 36,223,513,398,143.08
  5. Step 5: Solve for x
    x = 36,223,513,398,143.08/6,800,987.46
  6. Step 6: Final answer
    x = 5,326,213.82

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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.