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Finding the Fourth Proportional to 6,808,913.88, 9,396,018.42 and 3,711,369.08

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Solution

The fourth proportional to 6,808,913.88, 9,396,018.42 and 3,711,369.08 is: 5,121,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,808,913.88 : 9,396,018.42 = 3,711,369.08 : x
  2. Step 2: Convert to fraction form
    6,808,913.88/9,396,018.42 = 3,711,369.08/x
  3. Step 3: Cross multiply
    6,808,913.88x = 9,396,018.42 × 3,711,369.08
  4. Step 4: Simplify right side
    6,808,913.88x = 34,872,092,239,098.45
  5. Step 5: Solve for x
    x = 34,872,092,239,098.45/6,808,913.88
  6. Step 6: Final answer
    x = 5,121,535.22

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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.