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Finding the Fourth Proportional to 36,216,307.69, 49,978,021.63 and 19,696,076.70

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Solution

The fourth proportional to 36,216,307.69, 49,978,021.63 and 19,696,076.70 is: 27,180,323.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,216,307.69 : 49,978,021.63 = 19,696,076.70 : x
  2. Step 2: Convert to fraction form
    36,216,307.69/49,978,021.63 = 19,696,076.70/x
  3. Step 3: Cross multiply
    36,216,307.69x = 49,978,021.63 × 19,696,076.70
  4. Step 4: Simplify right side
    36,216,307.69x = 984,370,947,338,739
  5. Step 5: Solve for x
    x = 984,370,947,338,739/36,216,307.69
  6. Step 6: Final answer
    x = 27,180,323.18

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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.