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Finding the Fourth Proportional to 65,671.25, 90,626.45 and 35,863.25

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Solution

The fourth proportional to 65,671.25, 90,626.45 and 35,863.25 is: 49,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,671.25 : 90,626.45 = 35,863.25 : x
  2. Step 2: Convert to fraction form
    65,671.25/90,626.45 = 35,863.25/x
  3. Step 3: Cross multiply
    65,671.25x = 90,626.45 × 35,863.25
  4. Step 4: Simplify right side
    65,671.25x = 3,250,158,853.65
  5. Step 5: Solve for x
    x = 3,250,158,853.65/65,671.25
  6. Step 6: Final answer
    x = 49,491.35

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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.