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Finding the Fourth Proportional to 65,553.75, 90,464.18 and 35,745.75

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Solution

The fourth proportional to 65,553.75, 90,464.18 and 35,745.75 is: 49,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,553.75 : 90,464.18 = 35,745.75 : x
  2. Step 2: Convert to fraction form
    65,553.75/90,464.18 = 35,745.75/x
  3. Step 3: Cross multiply
    65,553.75x = 90,464.18 × 35,745.75
  4. Step 4: Simplify right side
    65,553.75x = 3,233,709,962.24
  5. Step 5: Solve for x
    x = 3,233,709,962.24/65,553.75
  6. Step 6: Final answer
    x = 49,329.14

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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.