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Finding the Fourth Proportional to 65,193.33, 89,963.69 and 40,037.97

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Solution

The fourth proportional to 65,193.33, 89,963.69 and 40,037.97 is: 55,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,193.33 : 89,963.69 = 40,037.97 : x
  2. Step 2: Convert to fraction form
    65,193.33/89,963.69 = 40,037.97/x
  3. Step 3: Cross multiply
    65,193.33x = 89,963.69 × 40,037.97
  4. Step 4: Simplify right side
    65,193.33x = 3,601,963,321.12
  5. Step 5: Solve for x
    x = 3,601,963,321.12/65,193.33
  6. Step 6: Final answer
    x = 55,250.49

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1.5x scale

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.