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Finding the Fourth Proportional to 66,496.44, 99,743.69 and 30,937.87

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Solution

The fourth proportional to 66,496.44, 99,743.69 and 30,937.87 is: 46,406.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,496.44 : 99,743.69 = 30,937.87 : x
  2. Step 2: Convert to fraction form
    66,496.44/99,743.69 = 30,937.87/x
  3. Step 3: Cross multiply
    66,496.44x = 99,743.69 × 30,937.87
  4. Step 4: Simplify right side
    66,496.44x = 3,085,857,314.54
  5. Step 5: Solve for x
    x = 3,085,857,314.54/66,496.44
  6. Step 6: Final answer
    x = 46,406.35

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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.