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Finding the Fourth Proportional to 35,661.51, 49,213.65 and 19,529.50

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Solution

The fourth proportional to 35,661.51, 49,213.65 and 19,529.50 is: 26,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,661.51 : 49,213.65 = 19,529.50 : x
  2. Step 2: Convert to fraction form
    35,661.51/49,213.65 = 19,529.50/x
  3. Step 3: Cross multiply
    35,661.51x = 49,213.65 × 19,529.50
  4. Step 4: Simplify right side
    35,661.51x = 961,117,977.68
  5. Step 5: Solve for x
    x = 961,117,977.68/35,661.51
  6. Step 6: Final answer
    x = 26,951.13

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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.