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Finding the Fourth Proportional to 35,661.40, 49,215.50 and 19,747.33

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Solution

The fourth proportional to 35,661.40, 49,215.50 and 19,747.33 is: 27,252.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,661.40 : 49,215.50 = 19,747.33 : x
  2. Step 2: Convert to fraction form
    35,661.40/49,215.50 = 19,747.33/x
  3. Step 3: Cross multiply
    35,661.40x = 49,215.50 × 19,747.33
  4. Step 4: Simplify right side
    35,661.40x = 971,874,571.89
  5. Step 5: Solve for x
    x = 971,874,571.89/35,661.40
  6. Step 6: Final answer
    x = 27,252.85

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1.5x scale

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.