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Finding the Fourth Proportional to 27,825,019.80, 38,981,569.80 and 27,825,019.80

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Solution

The fourth proportional to 27,825,019.80, 38,981,569.80 and 27,825,019.80 is: 38,981,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825,019.80 : 38,981,569.80 = 27,825,019.80 : x
  2. Step 2: Convert to fraction form
    27,825,019.80/38,981,569.80 = 27,825,019.80/x
  3. Step 3: Cross multiply
    27,825,019.80x = 38,981,569.80 × 27,825,019.80
  4. Step 4: Simplify right side
    27,825,019.80x = 1,084,662,951,520,082
  5. Step 5: Solve for x
    x = 1,084,662,951,520,082/27,825,019.80
  6. Step 6: Final answer
    x = 38,981,569.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.