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Finding the Fourth Proportional to 65,855.52, 98,786.52 and 19,112.04

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Solution

The fourth proportional to 65,855.52, 98,786.52 and 19,112.04 is: 28,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,855.52 : 98,786.52 = 19,112.04 : x
  2. Step 2: Convert to fraction form
    65,855.52/98,786.52 = 19,112.04/x
  3. Step 3: Cross multiply
    65,855.52x = 98,786.52 × 19,112.04
  4. Step 4: Simplify right side
    65,855.52x = 1,888,011,921.70
  5. Step 5: Solve for x
    x = 1,888,011,921.70/65,855.52
  6. Step 6: Final answer
    x = 28,669.00

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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.