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Finding the Fourth Proportional to 35,649.84, 53,571.69 and 19,021.62

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Solution

The fourth proportional to 35,649.84, 53,571.69 and 19,021.62 is: 28,584.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,649.84 : 53,571.69 = 19,021.62 : x
  2. Step 2: Convert to fraction form
    35,649.84/53,571.69 = 19,021.62/x
  3. Step 3: Cross multiply
    35,649.84x = 53,571.69 × 19,021.62
  4. Step 4: Simplify right side
    35,649.84x = 1,019,020,329.94
  5. Step 5: Solve for x
    x = 1,019,020,329.94/35,649.84
  6. Step 6: Final answer
    x = 28,584.15

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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.