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Finding the Fourth Proportional to 6,653,490.65, 9,981,330.89 and 2,042,361.12

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Solution

The fourth proportional to 6,653,490.65, 9,981,330.89 and 2,042,361.12 is: 3,063,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653,490.65 : 9,981,330.89 = 2,042,361.12 : x
  2. Step 2: Convert to fraction form
    6,653,490.65/9,981,330.89 = 2,042,361.12/x
  3. Step 3: Cross multiply
    6,653,490.65x = 9,981,330.89 × 2,042,361.12
  4. Step 4: Simplify right side
    6,653,490.65x = 20,385,482,125,379.19
  5. Step 5: Solve for x
    x = 20,385,482,125,379.19/6,653,490.65
  6. Step 6: Final answer
    x = 3,063,877.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.