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Finding the Fourth Proportional to 66,480.99, 91,735.53 and 40,652.52

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Solution

The fourth proportional to 66,480.99, 91,735.53 and 40,652.52 is: 56,095.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,480.99 : 91,735.53 = 40,652.52 : x
  2. Step 2: Convert to fraction form
    66,480.99/91,735.53 = 40,652.52/x
  3. Step 3: Cross multiply
    66,480.99x = 91,735.53 × 40,652.52
  4. Step 4: Simplify right side
    66,480.99x = 3,729,280,468.04
  5. Step 5: Solve for x
    x = 3,729,280,468.04/66,480.99
  6. Step 6: Final answer
    x = 56,095.44

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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.