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Finding the Fourth Proportional to 65,908.65, 98,863.02 and 38,011.08

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Solution

The fourth proportional to 65,908.65, 98,863.02 and 38,011.08 is: 57,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,908.65 : 98,863.02 = 38,011.08 : x
  2. Step 2: Convert to fraction form
    65,908.65/98,863.02 = 38,011.08/x
  3. Step 3: Cross multiply
    65,908.65x = 98,863.02 × 38,011.08
  4. Step 4: Simplify right side
    65,908.65x = 3,757,890,162.26
  5. Step 5: Solve for x
    x = 3,757,890,162.26/65,908.65
  6. Step 6: Final answer
    x = 57,016.65

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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.